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        READING HALLTHE DOORS OF WISDOM | 
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 VICTORY OF THE PAPACYCHAPTER
          III.
   GERMANY IN THE REIGN OF FREDERICK II.
 The civil war had had disastrous results for Germany. Philip, Otto, and
          Frederick, in order to win the support of powerful
          nobles, churches, towns, had granted away lands, privileges, rights,
          prerogatives, all that had in the past meant the strength of the German kingdom
          and of the Holy Roman Empire. The Church had been emancipated from royal
          control; the princes of the Empire were becoming more and more independent,
          they were rapidly changing into territorial sovereigns, domini terrae as
          they are designated in the famous privilege of 1231; the towns had come to
          realise their strength, had proved themselves to be a power to be reckoned
          with. Slowly but surely Germany was moving along the path of dissolution, was
          becoming a conglomeration of semi-independent princedoms instead of a unified
          State. Frederick’s German policy, as we shall see, far from checking it, all tended
          to hasten the course of this movement. He alienated with a lavish hand the
          royal rights in favour of the princes, and especially the ecclesiastical
          princes on whose support during the greater part of his reign he principally
          relied. Such a policy, however unfortunate in its results, was perhaps
          inevitable when there were two rival kings, each of whom could only gain or
          keep the adherence of powerful lords by outbidding his opponent. But when with
          the death of Otto in 1218 the real need for it had passed, the number of grants
          of privileges, instead of diminishing, enormously increased. So we find Frederick in these years moving about his kingdom conciliating his
          subjects to his rule, rewarding the loyalty of some, buying the favour of
          others, settling disputes, and attempting to restore some semblance of order in
          the land—always by the expensive and disastrous method of sacrificing the
          regalian rights. When the business of the Empire did not require his presence
          elsewhere, he would take up his residence at Spires or Nuremberg which had
          always been conspicuous for their attachment to the house of Hohenstaufen, or
          still more frequently at Hagenau in Alsace; the fine
          palace there, built by his grandfather, was his favourite home north of the
          Alps, inter alia patrimonialia cariorem, and there he would spend months at a time busily engaged in granting away the
          lands and rights of the Empire.
           The compliant, we might almost, say
          weak, attitude that Frederick adopted towards the princes is exemplified early
          in his reign at the diet of Wurzburg on 15 May 1216 when he issued the Sententia
            de non alienandis princapatibus. By an arrangement with the Bishop of Ratisbon, Frederick had alienated by
          exchange the two imperial abbeys of Ober- and Niedermünster.
          The abbesses, who were not consulted in the transaction, made their complaint
          at the diet of Wurzburg. The princes, who regarded the precedent as a dangerous
          one, not only got the exchange annulled, but forced Frederick to make a general
          declaration against such alienations in the future, “that no principality could
          or ought to be exchanged or alienated from the Empire or be transferred to
          another prince against the will of the prince of that principality and without
          the full consent of the ministeriales”. The same fear of irritating and so losing the support of the ecclesiastical
          princes is perceptible in his policy towards the towns. As regards the imperial
          towns he acted with his customary liberality; so Aix-la-Chapelle (1215), Goslar and Nuremberg (1219), Dortmund (1220) received
          very ample charters of privileges. He would have liked to adopt the same policy
          towards the seignorial towns if the lords would have let him; but when he tried
          it, he met with a rebuff. In 1215 he was obliged at the instance of the bishop
          to deprive the citizens of Cambrai of the privileges they had received from him
          only a year before; again, in 1218 he recognised the rath set up by the
          citizens of Basle, but the bishop complained, and the recognition had to be
          withdrawn.
   It may be argued in excuse of
          Frederick’s policy that the princes had grown over-powerful during the civil
          war, they were already past controlling, and they had learnt how to use their
          strength to their own advantage; but in this Otto’s death made a difference.
          For although for the last two years of his life Otto had not been a serious
          menace to Frederick’s position, his very existence had given opportunities to
          discontented nobles to rise in rebellion. Herman, the Landgrave of Thuringia,
          was, it seems, contemplating yet another desertion, notwithstanding the fact
          that it was his own intrigues which were largely responsible for Frederick’s
          summons to Germany, when death, on 25 April 1217, happily removed him from the
          field of politics. Perhaps the most conspicuous, but also one of the most
          treacherous characters in the civil war, he had by his repeated changes from
          one side to the other profoundly influenced the fortunes of the parties; he was
          dangerous as an opponent, but almost equally so as an ally. One could wish that
          he had kept out of politics and devoted himself altogether to patronage of the
          arts, to minstrels’ contests, and to the entertainment of the somewhat
          indiscriminate collection of artistic and literary men that Waltlier von der Vogelweide tells us gathered
            together at the Wartburg. For in these things he was without a master. His son Louis was a more stable character, a loyal
          friend, not obsessed with a love of intrigue and gain, the husband of the
          austere St Elizabeth, at whose inspiration he w asled to follow a life of piety and good works.
           Another prominent figure of the civil
          war, the man first chosen to contest the crown with Philip, Berthold V of Zähringen,
          died a month or two before Otto (18 February 1218). But after giving up his
          candidature for the throne he had joined Philip, and, except for the short
          period of Otto’s uncontested power, he had been a fairly
            steady adherent of the Hohenstaufen party. His death was the cause of
          trouble and confusion, for he left sisters and cousins but no children. The
          inheritance was a rich one, comprising large tracts of Jurane Burgundy and Swabia, and was keenly sought after by the relatives and by Frederick
          himself, who, in his anxiety to get what he could out of it, went so far as to
          buy out the claim of one of the collaterals, the Duke of Teck. A partition of
          the estate satisfactory to the parties concerned was ultimately arranged at Ulm
          in September 1219: the lands on the right bank of the Aar fell to one
          brother-in-law of the late duke, the Count of Kyburg, while those mainly situated
          north of the Rhine, the district of the Black Forest and Breisgau, went to the
          other, Egeno Count of Urach; Frederick’s share was
          considerable; it included much of what is now northern Switzerland and the
          towns of Bern, Zurich, Schaffhausen, and Solothurn, which were soon raised to
          the position of imperial cities. The extinction of the house of Zähringen had
          another important consequence: it broke one of the real ties between Germany
          and the kingdom of Burgundy, over which the Dukes of Zähringen had
          intermittently exercised authority in the capacity of rectors. This title was
          later conferred upon the young King Henry; but in the hands of a boy of nine
          years old it could have been little more than a title. From the point of view
          of German influence in the Arelate, the childless
          death of Berthold of Zähringen was a serious loss.
   There had been troubles also in
          Bohemia, which, in consequence of a quarrel between King Ottokar and the Bishop
          of Prague, had been laid under interdict, and in Lorraine where Duke Theobald,
          by an unjustifiable interference in a dispute in the neighbouring Champagne,
          had gravely endangered the Franco-German alliance. It led in fact to a quarrel
          with Frederick, and Theobald declared for Otto (1216). The king took arms
          against him, occupied his duchy, and ultimately brought him to submission (June
          1218). Nevertheless the enmity continued, and when, a
          little more than a year later, this prince met his end by poison administered
          by a harlot, common report attributed the instigation of the act to Frederick.
   Although Frederick was recognised as
          king throughout Germany he was still without the symbols of his office, the
          royal insignia; these Otto’s brother, the ex-Count Palatine Henry, obstinately
          clung to even after the period of twenty weeks fixed for their retention by
          Otto in his testament. Pope Honorius, anxious to remove every obstacle to
          Frederick’s departure for the Crusade, was urgent with entreaties and threats
          which at last had the desired result. At Goslar in July 1219 Henry accepted the
          advantageous conditions Frederick was prepared to offer: he surrendered the insignia in return for 11,000 marks and the office of imperial vicar in the lands between the Weser and the
          Elbe. This was the end of the long struggle between the families of Welf and Hohenstaufen which had begun far back in the
          twelfth century with the rivalry of Henry the Proud and the first Hohenstaufen
          king Conrad. The people of Germany could once more devote themselves to the
          occupations of peace; they could, as the Magdeburg chronicle puts it, again
          begin to work the land and sow corn.
           But with the establishment of peace
          the question of the Crusade had to be faced. There can be no doubt that, when
          at his coronation at Aix- la-Chapelle in 1215 Frederick had taken the crusading
          vow, he had done so in all sincerity. Nor had he been urged to it by an
          importunate legate; he had taken the vow of his own free will. The early
          postponements were the necessary results of the political situation in
          Germany. It was imperative that he should restore some sort of order into the
          country which had just passed through nearly twenty years of civil war before
          setting out for a prolonged absence in the East. On 1 June 1216, the date
          appointed by the Lateran Council for departure, his rival was still living and the affairs of Germany were in chaos. There was
          no question of Frederick going. So in the summer of
          1217 the Crusade started without him. But on 24 June 1218, the date to which
          his departure had been deferred, although Otto was dead, Frederick had, as we
          have seen, other difficulties to deal with before he could safely set out upon
          his journey, and particularly the resistance of Otto’s brother Henry; this was
          put forward as the need for a further delay, in which Honorius acquiesced
          without much demur. It was postponed for a year, and then once more on the same
          grounds for another three months—till Michaelmas 1219. But after this the
          excuses became more slender, and Honorius
          correspondingly was more loth to accept them. When in October, in response to
          Frederick’s renewed request for delay, he fixed a third term for March 1220, he
          threw out a hint of excommunication in the event of the non-fulfilment of his
          vow.
           Honorius, wholly absorbed with the
          idea of carrying through the Crusade, was anxious to avoid doing anything which
          might hinder its accomplishment; and of this attitude Frederick took the
          fullest advantage in the matter of Sicily and the election of his son Henry as
          King of the Romans. It was these things that occupied his attention during the
          last months of his stay in Germany. On 1 July 1216 he had taken a solemn oath
          to Innocent III that as soon as he should be crowned Emperor he would altogether resign the kingdom of Sicily to his son Henry, who had
          already been crowned, king in 1212; he was to hold it of the Roman Church, be
          released from all paternal control, and due provision was made for its
          government during his minority. The object of this arrangement was to avoid the
          union of Sicily and the Empire in the hands of Frederick; a union in the hands
          of his son, not contemplated at the time, without being opposed to the actual
          wording of the oath, was none the less opposed to its intention. But Frederick
          could not lightly renounce the home of his childhood, his hereditary kingdom,
          the one spot in Europe perhaps where his astonishing character was really
          understood. His plan was somewhat to reverse the parts; he was to rule Sicily,
          his son Germany. We find him pleading with Honorius for a relaxation of the
          conditions of his oath to Innocent. On 10 February 1220 he repeated the promise
          with the proviso that he might succeed his son on the throne of Sicily in the
          event of the latter predeceasing him without children; on the 19 February he
          begged the Pope to allow him to retain the kingdom of Sicily during his own
          lifetime. That it was his intention to root his son in Germany  is equally unmistakeable. In1 216
          the boy with his mother, Queen Constance, was brought to Germany. He was
          created Duke of Swabia in 1217 and Rector of Burgundy in 1220. Frederick now
          meant, if he could manage it, to get him elected King of the Romans.
   His intention was apparently known and
          complained of at the papal court early in 1219, for in May Frederick wrote
          stating his motives: they were to ensure the good government of the Empire
          during his absence on crusade and to secure for his son the possessions of his
          house in the event of anything befalling him in the East. But, the anxiety at
          Rome was not allayed, and after the election, which took place at the diet of
          Frankfort in April 1220, Frederick wrote his excuses to Honorius, protesting
          his entire ignorance of the whole affair, nobis insciis et absentibus, and that it had been done by the
          princes owing to a dispute between the Archbishop of Mayence and the Landgrave of Thuringia which threatened to lead to civil war; he even
          professed that he had refused his consent until it had been ratified by the
          Pope. That the election of a child could avert civil disturbances was of course
          absurd, moreover it was wholly untrue that he refused his consent, for it was
          in grateful acknowledgement of their act that he made on 26 April the famous privilegium in favorem principum ecclesiasticorum, which indeed was framed with the very object of inducing the ecclesiastical
          princes to permit that to which they were naturally keenly opposed. They were
          opposed to it both on the ground that it implied that the kingship was in fact
          hereditary, and because it ran counter to the whole trend of papal policy. Only
          the most far-reaching concessions could tempt them to ignore the remonstrances
          of Rome; but Frederick to gain his end was prepared to grant them far-reaching
          concessions, and they yielded.
   Frederick, after repeating his former
          renunciation of the ius spolii, granted to the ecclesiastical princes free
          testamentary power; he renounced the right of imposing new tolls and mints
          within their territories and jurisdictions without their consent, while he
          recognised all tolls and rights of coinage which had already been conceded to
          them; he denied to the serf of the ecclesiastical prince the method of gaining
          his freedom by residence in a city for a year and a day. The abuse of power by
          the steward was checked by making him liable to a fine of 100 marks for damage
          done to the property of churches, and the jurisdiction of royal officials in
          episcopal cities was restricted to eight days preceding and following the
          holding of a diet. He placed the man excommunicated by the Church beyond the
          pale of the courts; he may neither act as witness or plaintiff; he may only
          appear as the defendant to charges brought against him, and then he is denied
          the assistance of an advocate; if after six weeks he has failed to get
          absolution, he falls under the ban of the Empire. So too Frederick
          surrendered the right of erecting castles and cities on church lands.
           By the Bull of Eger the German Church had been emancipated from the imperial control; the old
          influence exercised by the Crown over elections was no more; disputed elections
          came to be decided at Rome; only the bare formal investiture with the regalia
          remained to the king. By the privilegium of
          1220 and subsequent additions made by Frederick and his son, the ecclesiastical
          princes became territorial sovereigns. By a clause in the constitution issued
          at the time of his coronation at Rome Frederick exempted the clergy altogether
          from secular jurisdiction both in civil and criminal causes. Moreover, as the
          influence of the Crown in ecclesiastical matters diminished, the influence of
          the Papacy proportionately increased. Papal legates and papal agents were
          constantly resident in Germany, exercising authority over the Church in all
          kinds of ways, especially over matters of discipline and heresy, developing by
          this means the papal policy of centralisation. Frederick was led to adopt this
          policy so injurious to the position of the Crown, not because he was
          particularly interested in the welfare of the Church, but because it served, or
          at least he thought it served, his purpose; he was anxious to devote his
          attention to Italy and to Sicily, and. for this it was essential that Germany
          should remain at peace, which he believed could be most easily secured by an
          alliance with the princes, and especially with the ecclesiastical princes.
          Similar motives led him to select one of the most powerful of their number,
          Engelbert, Archbishop of Cologne, as the guardian of his son and his vicegerent
          in Germany during his absence. The arrangements for the Italian expedition were
          made at the diet of Frankfort; at the end of August he
          set out to cross the Brenner for his imperial coronation.
           These first eight years (1212-1220)
          form the only protracted stay that Frederick made in Germany. He returned in
          the summer of 1235 to deal with the situation created by the rebellion of his
          son, and except for a break of a few months spent in north Italy in the latter
          part of 1236 he remained north of the Alps till August 1237. He then departed
          never to return. So in his long reign of nearly forty years he gave but eight in all to Germany; and when he came, he came as a stranger
          into a foreign land, neither understanding nor much caring for the country, its
          people, or its institutions; hating the climate and the, to him, dreary
          scenery. This Norman-Italian-Oriental-southerner, this puer Apulus, who travelled with a harem and a
          menagerie, was an exotic in Germany, incomprehensible to his German subjects
          who understood him even less than he understood them. Moreover, not only did he
          not come to Germany, but he did not repose his complete confidence in those men
          in whose hands he left the government of the country. His representatives were
          continually hampered in their administration by inconvenient instructions from
          the absent Emperor.
           In the first period he placed his
          chief reliance on the ecclesiastical princes whose firm support he had secured
          before his departure for Italy by the privilegium of 1220, and the Hohenstaufen ministeriales who exercised a marked influence on the upbringing of the young King Homy. That
          Germany enjoyed a period of comparative peace was almost wholly due to the wise
          statesmanship of Engelbert, who was placed at the head of the administration.
          He was the fifth of his house to occupy the see of Cologne; through family
          influence he had at an early age obtained high preferment in the Church; at
          fourteen he was provost of the cathedral, and he was only just over thirty when
          in 1216 he was consecrated archbishop. During the civil war he had followed
          the fortunes of his uncle Archbishop Adolf, first as a zealous supporter of
          Otto, then as a deserter to Philip; for this last act he fell with Adolf under
          the Pope’s displeasure, was excommunicated, and only reconciled with the Church
          on performing the penance of taking part in the Albigensian Crusade. In 1215 he
          joined Frederick and remained henceforth a firm adherent of the house, of
          Hohenstaufen. The civil war had left Cologne heavily encumbered with debt. His
          careful and thrifty handling of the finances removed the burden and proved his
          ability as an administrator. Towards the nobility and especially towards the
          lay stewards, whose oppressions and exactions had become an intolerable abuse,
          he took a firm line; he put down the insubordination of the counts, nobles, ministeriales, and burghers of his diocese,
          wrote his biographer, Caesarius of Heisterbach, so that no one dared oppose him. In his city,
          his diocese, and his duchy of Westphalia he made his authority felt effectively;
          elsewhere he could not exercise such a direct control; the independent
          sovereignty of the princes had already become too firmly established. He did
          what he could by a policy of maintaining the landfrieden, and the years of his administration are remarkable for the absence of any
          serious feuds.
   In his foreign policy Engelbert was less
          successful; this was chiefly due to the fact that Frederick took a more lively interest in the relations of the Empire with her
          neighbours than he did in her purely domestic concerns, and his views
          frequently did not coincide with those of his representative in Germany. The
          power of Denmark under Waldemar II had increased to an alarming extent; she had
          occupied the German territory north of the Elbe including the two important
          towns of Hamburg and Lubeck, and her conquests were recognised by treaty in
          1214; the whole area of German colonisation along the Baltic coast was
          threatened. By a bold but treacherous stroke the Count of Schwerim succeeded in capturing the Danish king and his son in the island of Lyöe near Fünen
          (6 May 1223) and thrust them into prison at Danneberg.
          Although the method of capture was generally disapproved, the opportunity of
          using it to the advantage of the Empire was too good to be neglected. The
          government therefore immediately took steps to induce the count to hand over
          the royal prisoners. This was achieved at Nordhausen in September. Frederick had already intimated in a letter to the Bishop of
          Hildesheim his general consent to the policy of using the occasion for the
          recovery of the lands beyond the Elbe; but difficulties arose owing to the
          intervention of the Pope, to whom the Danes had appealed. He ordered the count
          to release his prisoners unconditionally under pain of excommunication. The
          attitude of Honorius seems to have modified Frederick’s views, for Herman of Salza, who acted as his representative in the matter,
          ultimately negotiated a treaty (July 1224), the terms of which were far more
          lenient than those contemplated in the preliminaries at Nordhausen;
          they were however rejected by the Danes, and Waldemar remained a prisoner,
          while Nordalbingia was slowly reconquered by the
          counts of the district. The Danish leader, Albert of Orlamünde, was defeated at
          Mölln, Hamburg and Lubeck were recovered, and Waldemar was forced to submit to
          the terms demanded by the Count of Schwerin: the lands north of the Elbe were
          surrendered unconditionally and the king’s ransom was fixed at 45,000 marks of
          silver. But Waldemar was no sooner at liberty than he appealed to the Pope to
          release him from the terms to which he had agreed. The Pope promptly complied
          with the request, with the inevitable result that war once more broke out
          between Denmark and the princes of north Germany. Waldemar, aided by his
          nephew, the Wolf Otto of Brunswick, invaded Holstein in the autumn of 1226. But
          after some initial success he was decisively defeated at Bornhövede between
          Kiel and Lubeck (22 July 1227).
           The overthrow of the Danish power on
          the southern shore of the Baltic opened the way for the further development of
          German colonisation and missionary enterprise. The work of the Knights of the
          Sword in Livonia and Esthonia proceeded uninterrupted
          by Danish rivalry. The year before the final settlement of the entanglement
          with Denmark Frederick had confirmed the grant of Prussia made by the Polish
          Duke Conrad of Masovia to the Teutonic Knights. This
          was the beginning of the conquest and colonisation of that region which
          centuries later gave its name to the dominating power in Germany.
   In his attitude towards the western
          kingdoms, France and England, Engelbert found himself
          acutely at variance with his master. After the death of Philip Augustus war
          again broke out between England and France, and Louis VIII approached Frederick
          with the object of renewing the alliance concluded, at Vaucouleurs in 1212, he succeeded so far as to obtain from the Emperor a promise that
          neither he nor any of his subjects should conclude any alliance with England
          (Catania, November 1223). This was merely continuing the traditional and
          natural Hohenstaufen policy. Engelbert, on the other hand adopted a different
          course, and he may be accused of acting in this matter too much as the representative
          of Cologne, too little as the statesman of the Hohenstaufen. The commercial
          interests of Cologne were inseparably bound up with those of England, and the
          archbishop had much at heart the welfare of his city; he had done much to
          foster its economic prosperity, and so greatly did it flourish that already in
          his day it became a common saying “wer Köoln nicht gesehen hat, hat Deutschland nicht gesehen”. He set to work therefore to bring about an alliance with England, which
          he hoped to seal by the marriage of the young Henry, whom he had crowned king
          at Aix-la-Chapelle on 8 May 1222, with Princess Isabella, the sister of Henry
          III.
           He was successful in quashing a counter-proposal for a marriage of the young king with a
          French princess, which seems to have been put forward at an interview with
          Louis VIII near Toul in November 1224. But he could make no headway with his
          own project. An embassy Treaded by Walter Mauclerc,
          Bishop of Carlisle, did indeed visit Germany to negotiate the business, but
          the ambassadors found opinion in Germany decisively
          against the match, and they returned home without accomplishing anything.
          Neither an English nor a French marriage commended itself to the princes, for
          they had a candidate of their own, the daughter of Ottokar, King of Bohemia,
          with whom an enormous dowry was offered as an inducement to the Emperor. Duke
          Leopold of Austria was dispatched to San Germano to
          gain the Emperor’s consent; but it was not Ottokar’s but Leopold’s own daughter Margaret whom Frederick selected as the bride for
          his son. The marriage took place at, Nuremberg on 29 November 1225.
           Three weeks earlier Engelbert had been
          assassinated by his cousin Frederick of Isenburg,
          near the town of Schwelm. The actual motive
          for the murder was Engelbert’s action in checking the
          oppressive conduct of his nephew towards the convent of Essen of which he was
          steward; but there is no doubt that the archbishop’s stern measures in putting
          down the lawlessness that prevailed at the end of the civil war had met with
          fierce and widespread resentment among the local nobility. It was not a spontaneous
          act, but a premeditated conspiracy in which many persons of high rank and
          influence were involved. Count Frederick was put under the ban of the Empire
          and excommunicated by the Church; after nearly a year he was rounded up,
          confessed his guilt, and was broken on the wheel; his brothers the Bishops of Münster
          and Osnabrück, his chief accomplices, were deprived of their sees.
   It was easy to avenge the murder, not
          so easy to deal with the situation which resulted from it. There was no one
          fitted by position and ability to fill the place at the head of the government
          that Engelbert had occupied. Many of those ecclesiastical princes who had
          enjoyed the Emperor’s confidence when he left Germany in 1220 had since died:
          Otto of Wurzburg, for example, in 1223 and Conrad the Chancellor, Bishop of
          Metz and Spires, in 1224. The administration passed into the hands not of one
          of the leading churchmen but into those of a secular prince, Louis, Duke of
          Bavaria, a man who had neither the strength of character nor the gift of
          statesmanship possessed in such a marked degree by Engelbert. Moreover the position of regent was becoming every year a
          more difficult one; for as he grew up the young king began to weary of tutelage
          and to develope ideas and a policy of his own which
          did not always conform to those of his guardian. Unlike his predecessor, who
          made the maintenance of the landfrieden the
          central feature of his domestic policy, Louis took no steps to check or to
          intervene in the numerous feuds which broke out in all parts of the country. On
          the rare occasions when he departed from this policy of non-intervention or
          perhaps what is better described as impolitic inactivity, he did so from
          motives of self-interest rather than from reasons of state, as when he and King
          Henry disputed the inheritance of Otto of Brunswick-Luneburg to the Welf estates on the death of Henry, the Count Palatine of
          the Rhine. They both raised counter-claims of the
          slenderest description, and together made an expedition against Brunswick; but
          they achieved nothing and were compelled ignominiously to retreat.
   In the autumn of
          1227 the news of the Emperor’s excommunication reached Germany, but it
          made little or no impression on the country at large: neither the
          ecclesiastical nor the secular princes availed themselves of the Pope’s release
          from their oaths of fealty; only one bishop, the Bishop of Strasbourg,
          published the sentence against Frederick, and he did so rather from private motives
          than from any sincere belief in the justice of the papal cause. The
          excommunication of Frederick may have influenced to some extent the conduct of
          Louis of Bavaria, who quarrelled with his master towards the end of the year
          1228. The cause of the rupture is obscure; it was probably chiefly due to the
          natural desire of King Henry, who was now seventeen years old, to have a more
          independent position in the government of the country. Friction was the
          inevitable result; at the Christmas court at Hagenau it came to an open quarrel, and the duke joined the papal side and went off to
          Bavaria to raise a rebellion. Pope Gregory, in the meanwhile, was doing all in
          his power to undermine the imperial government in Germany. In pursuance of this
          object be dispatched in February 1229 Otto, Cardinal-deacon of St Nicholas in Carcere. But the legate was unable to enter the heart of
          Germany; he spent months of enforced inactivity at Valenciennes; the councils
          which he summoned were prevented from taking place; his attempts to set up an
          anti-king met with little encouragement. Otto of Brunswick was invited to
          undertake the part, as his uncle Otto IV had done before him; but although
          urged to do so by Henry III of England, he, after some hesitation, wisely
          declined. The rebellion raised by the Duke of Bavaria was crushed without
          difficulty; Strasbourg, the other centre of resistance, was blockaded, and
          through the mediation of the Abbot of St Gall was brought to terms (August
          1229). Frederick had in the meanwhile returned from his successful if
          unorthodox Crusade (June 1229) and had made short work of the opposition
          stirred up against him in Italy by Gregory IX. In July 1230 peace was made at
          San Germano, and in August Frederick was released
          from the sentence of excommunication. Both in Italy and in Germany the Pope’s
          efforts to undermine the power of the Hohenstaufen had signally failed.
   The German towns during the first half
          of the thirteenth century presented a difficult problem to the government. In spite of the resistance of their feudal superiors, they
          were always growing more powerful and more independent. A group of towns on the
          middle Rhine even ventured to form a league, and this just at
            the moment when the second Lombard league had been established and had
          had the audacity to prevent King Henry from crossing the Alps to attend the
          diet of Cremona at his father’s summons in the summer of 1225. The Rhine league
          was quickly suppressed at the instance of the Archbishop of Mayence against whom it was primarily directed (Wurzburg, 27 November 1226). Normally,
          as in this case, the Duke of Bavaria continued the policy of Engelbert, and
          indeed of Frederick himself, of supporting the bishops against their aspiring townsmen;
          but once at any rate he diverged from it with unfortunate consequences. This
          was the case of Verdun. At the end of March 1227, on the
            occasion of the coronation of the queen, Margaret of Austria, he granted
          to the city in the name of the young king a constitution which was permitted to
          carry out its functions even despite the opposition of the bishop. A week
          later, 6 April, the king was forced to revoke the charter in the most
          humiliating manner “at the request of the envoys of the bishop” on the ground
          that he had no right to grant it without first consulting the bishop. It was
          only granted, he explained in a subsequent letter, because of the importunity
          of the burghers and in the press of business. This forced revocation might
          indeed have been expected, for the ecclesiastical interest was exceedingly
          strong, and even Frederick had suffered similar reverses on the rare occasions
          when he had ventured upon a course of action in opposition to the bishops. But
          this was not the end of the Verdun affair; scarcely more than two months later
          the king and his minister again changed their policy, and once more granted the
          charter to the city.
   This action is symptomatic of the
          attitude which Henry adopted when he came to be freed from the control of a
          guardian; and he vigorously pursued it in the face of the formidable opposition
          not only of the princes but of the Emperor himself. It was the main cause of
          the friction and ultimately of the quarrel between father and son; for the
          father had learnt to rely for support on the princes of Germany whose interest
          it was to check the development of municipal power. The strikingly different
          political outlook of the two accounts to a large extent for the different
          attitude they adopted towards these conflicting elements of German society—the
          princes and the burghers. Frederick’s was imperial; Henry’s national. The latter held the princes in suspicion; their independence
          within their dominions, their acquisition of what had been royal prerogatives,
          altogether their over-mighty power he regarded, and rightly so, as a very
          serious menace to the position of the Crown. The towns, on the other hand,
          whose economic prosperity benefited the country, might, with due encouragement,
          come to act, as in England and France, as a valuable check on the dangers
          inherent in an uncontrolled feudal, society. Unfortunately Henry had neither the character nor the ability to carry through such a policy,
          and the forces against him were too great. His attempts were defeated, and the
          victory of the princes was on each occasion marked by fresh concessions of
          prerogatives and privileges at the expense of the Crown.
   Many of the princes joined the Emperor
          in Italy on his return from the Crusade and took an active part in the
          negotiations which led to the peace of San Germano.
          Their absence from Germany provided Henry with an excellent opportunity to set
          on foot his new policy. He was supported by a number of the smaller nobility and ministeriales and
          also by Duke Louis of Bavaria, with whom he was now completely reconciled and
          who had during his regency shown a slight inclination in the same direction. In
          April the king confirmed a former charter in favour of Liège, in June he
          recognised a league of Netherland towns with Liège at its head. A few months
          later he went even farther: he would enter into no
          engagement with the Bishop of Liège without reserving the inviolability of the
          rights and privileges of the league. He conferred on the burghers of Nijmegen
          all the liberties and customs enjoyed by Aix-la-Chapelle and other imperial
          towns, and the right to carry their merchandise free of toll by land and water
          throughout the Empire; they might also receive whomsoever they would as
          burghers.
   The return of the princes to Germany quickly
          put an end to his work. At Worms in January he was
          forced to issue a general edict against town leagues: no city or town was
          permitted to form communiones, constitutions, colligationes, confederationes vel coniurationes aliquas. Then in the following May the princes wrung
          from him the famous constitutio in favorem principum. It
          practically made the prince the absolute authority within his domain to the
          exclusion of the rights of the Crown; he became, as indeed he is described in
          the document, the dominus terrae. Some of the clauses were direct
          limitations of the power of the Crown. Such for instance is that which binds
          the king to construct no new fortress or city to the prejudice of the princes
          (cl. 1), or those which impose restrictions on the royal rights of establishing
          markets and mints (cl. 2 and 17) and on jurisdiction. The Centumgravius (Schultheiss),
          who was responsible for local justice, was to receive his office no longer from
          the king but from the lord of the land (cl. 7). Others again were directed
          especially against the power of the towns: so the pfahlburgers, that is, citizens who did not
          reside within the walls, but nevertheless acquired the protection and the
          rights of the city, were suppressed (cl. 10); escaped serfs were no
          longer to be received in imperial towns (cl. 12); the jurisdiction of the town
          was confined (cl. 18). Some of the privileges contained in this document were
          not entirely new; some of them had been granted or had been assumed before in
          individual cases. But the constitution of 1231 made them general and made them
          statutory; together with the privileglwm in favorem principum ecclesiasticorum of 1220, it provides the legal
          foundation for the territorial sovereignty of the princes. To prevent the worst
          results that might follow from this position, a safeguard in the form of a
          royal edict was published the same day: it forbade the princes from making new
          laws on their own account; the consent of the meliorum et maiorum terrae must first be obtained.
           In the meanwhile the relations between the Emperor and his son were growing more and more
          strained. It was not only in the different attitude that he adopted toward the
          towns that Henry earned his father’s displeasure and distrust; it was his
          whole manner of life. “Ve terre,
          ubi rex puer est!” the
          chronicler of Ebersheim quotes not ineptly in
          recounting the events of these years. He relied upon advisers, especially the
          lower nobility and the ministeriales, in whom the Emperor had little confidence; he consorted with poets and actors;
          his court was luxurious and prodigal; his married life was anything but
          successful, and he made some efforts to obtain a divorce from Margaret of
          Austria with a view to marrying Agnes of Bohemia. In all these respects his
          conduct met with the severe disapproval of Frederick. Then the mysterious and
          unaccountable murder of Duke Louis of Bavaria added to the difficulties of the
          political situation in Germany; it nearly caused an outbreak of civil war. He
          was killed on 16 September 1231 at Kelheim near Worms by a hired assassin—a
          Saracen emissary of the Old Man of the Mountains who was in league with the
          Emperor, as the story went in Germany. There is no doubt that it was widely believed,
          though without adequate foundation, that Frederick had a hand in the deed. The
          state of things in Germany had become so strained that it was imperative that
          the Emperor should come to an understanding with his son. For this purpose he summoned Henry and the German princes to attend
          the diet at Ravenna.
           The diet of Ravenna had been first
          arranged for November to deal with the affairs of Lombardy; but the Lombards in
          July had renewed their league at Mantua, and they again, as in 1226, closed the
          Alpine passes to prevent the ingress of King Henry and the princes into Italy.
          The diet had to be postponed till Christmas when some of the Germans managed to put in an appearance, having travelled thither by way
          of Aquileia and the sea. But the barring of the routes through the Alps
          provided Henry, who had no wish for the meeting with his father, with a
          tolerable excuse for remaining in Germany, and the work of the diet proceeded
          without him. Frederick, embittered by the obstinate resistance of the Lombard
          cities, and fearing perhaps that the example might be followed in Germany,
          issued a sweeping edict against all communes, councils, civic magistrates or
          rectors or other officials set up without the leave of the bishop; he similarly
          annulled all gilds, artificii confraternitates seu societates. To the princes on the other hand he was, as usual, bountiful; they were to enjoy their
          liberties in the widest interpretation (latissima interpretacione gaudeant). But Frederick was legislating against a
            power already too strongly established; the position of the German towns could
            not be shaken by a general edict issued from Italy by an absent Emperor. In spite of the anti-municipal legislation, the towns
            continued to prosper, to grow more powerful, and to defy both Frederick and the
            ecclesiastical princes. Indeed, at this very time, notwithstanding the
            Constitution in favour of the princes, Henry had reverted to his policy of
            befriending the towns and was issuing edicts to their advantage. The Emperor
            adjourned the diet of Ravenna to Aquileia to give another opportunity to his
            disobedient son to render himself before him; there could now be no excuse on
            the ground of the closing of the Alpine passes to justify his non-appearance,
            and Henry allowed himself to be persuaded by the imperial chancellor,
            Siegfried, Bishop of Ratisbon, to comply. He was reconciled with his father,
            but only under the most humiliating conditions: he not only promised on oath to
            obey the imperial commands and especially to bestow
            his favour upon the princes, but these were ipso facto to be released from their oaths of fealty
              in the event of his breaking his promise. It appears that Frederick
              contemplated stronger measures, even deposition, but the princes, now assured
              of their position, intervened in his favour, and bound themselves to support
              the Emperor should Henry revert to his evil ways (Cividale, April 1232).
   The outstanding feature of German
          history during the two years following Henryk submission to his father was
          that remarkable wave of persecution of heresy which spread through the country and which was carried out with an almost
          unparalleled fanaticism and ferocity. Little had been done in this respect in
          the earlier years of Frederick’s reign. Occasionally we hear of the
          condemnation of a heretic: a certain Henry Minnike of
          Goslar was burnt for heresy in 1225; a wealthy citizen of Strasbourg in 1229.
          But it was not till 1231 that energetic steps were taken to root out the evil:
          in that year Gregory IX commissioned the Dominicans and also Conrad of Marburg with the task of tracking down heretics and bringing about
          their condemnation; that they might the more effectually accomplish this work
          they were further granted judicial authority. So the
          trial of heretics passed from the control of the bishops into the power of the
          inquisition. The harsh edict against heretics published by  Frederick at the diet of Ravenna in
          March 1232 added the imperial authority to the inquisition which had been set
          working in Germany by the decrees of Gregory IX. All heretics throughout the
          Empire were to be condemned and handed over to the secular arm to suffer death
          at the stake; even those who repented and were willing to return to the faith
          were to be thrust into prison, there to serve out a life-sentence. The
          Dominicans were taken under the special protection of the Emperor. An orgy of
          killing followed. In the centre of it all was Conrad of Marburg, the index
            sine misericordia, a secular priest of Mayence,
          who had already been much employed both by Gregory and by his predecessor
          Honorius first as a preacher of the Crusade, then as an instrument for the
          suppression of heresy. He had been the confessor of St Elizabeth who, after the
          death of her husband, the Landgrave Louis, at Brindisi in 1227, had been driven
          from the Thuringian court by Henry Raspe and had
          taken refuge at Marburg, where, submitting herself wholly to the influence of
          Conrad, she soon wore out her strength by asceticism and good works (1231). It
          was after this that heretic-hunting became an all-absorbing passion, indeed
          almost a disease, with Conrad. He and his satellites grossly misused the
          judicial power entrusted to them; “on the same day that anyone was accused,”
          wrote the chronicler of Cologne, “whether justly or unjustly, without the power
          of appeal or the opportunity of defence being afforded him, he was condemned
          and thrown to the cruel flames”. In answer to protests made at this
          slaughter of innocents they are reported to have said: “We would willingly burn
          a hundred innocent persons so long as there is one guilty one among them”. The
          first victims were the humbler folk; but flushed with success the inquisitors
          soon began to attack the upper classes, and it led to their undoing. The
          atrocity of their proceedings and their total disregard of the elements of
          justice had by this time aroused the disgust and the hostility not only of
          laymen but of the clergy. With the exception of the
          Bishop of Hildesheim, whose sincere but misguided zeal for the faith had
          induced him to take a prominent part in the persecution, the bishops were
          unanimous in their opposition. The end came when the Count of Sayn, a man of blameless character and apparently perfectly
          orthodox, was charged with heresy. The case was brought before the court at Mayence in July 1233 and, in spite of the pleadings of Conrad of Marburg, was adjourned for a further hearing; this
          took place at Frankfort in February of the next year and his innocence was
          proved up to the hilt, no less than eight bishops besides many other clergy
          supporting him as oathhelpers. Conrad was dead; he
          had been murdered in the neighbourhood of Marburg on his way from the court of Mayence in the previous summer. The movement died down as
          rapidly as it had arisen. The efforts of the Pope to stir up a crusade
          for the eradication of heresy met with little success. A clause was introduced
          into the Peace Constitution published at Frankfort in February 1234 according
          to which heretics were to be dealt with by the properly constituted judges who
          were to have regard to the principles of equity. A reflexion of the movement
          against heresy may be seen in the wholly selfish and unwarranted attack upon
          the unfortunate peasant-community dwelling to the west of the mouth of the
          Weser—the Stedingers. Their only faults appear to
          have been their independence of the neighbouring lords and their refusal to pay
          tithes to the Archbishop of Bremen. They were proceeded against as heretics; a
          crusade was proclaimed; and in the summer of 1234 they were all but annihilated
          by the princes of the Low Countries in a battle fought at Oldenesche.
           King Henry had little sympathy for the
          extreme violence of the measures taken for the suppression of heresy. The
          charge made by the Annalist of Worms that the inquisitors won Henry’s support
          for their ruthless proceedings by their proposal that the property of a burnt
          heretic should be shared between the king and the bishop concerned, seems quite
          without foundation. For, far from acceding to such a suggestion, he issued in
          June 1231 an edict whereby the family property of a condemned heretic was to go
          to the heirs, the fiefs were to revert to the lord who was also to have the moveables. It is to Henry’s credit that throughout he
          adopted a temperate attitude; he was prepared to deal with heretics by proper
          judicial methods, but he did nothing to favour the wild excesses of Conrad of
          Marburg and his fellow inquisitors. While his moderation in this respect
          brought him undoubtedly into better relations with the bishops, it added a new
          cause for dissatisfaction with his father who, perhaps rather to please Gregory
          with whom he was at this time on the most friendly terms than from any great zeal on his own part, was actively engaged in the suppression
          of heresy in Italy.
   Henry was a wayward son, thoughtless,
          unsteady, injudicious; he was also ill advised by men who themselves had
          received little of the Emperor’s favour, though they and their like had in former times been the chief prop of the house of Hohenstaufen, the
          smaller nobility and the ministeriales, Anselm
          of Justingen, Henry of Neiffen,
          Conrad of Winterstettin. Notwithstanding the oath by
          which he had bound himself at Aquileia in 1232 despite the repeated warnings
          sent by Frederick, from Italy, Henry had’ soon reverted to his old practices
          and to his old associates. Although by his attitude towards heresy he had to
          some extent improved his relations with the higher clergy, he had quarrelled
          with most of the lay princes, and with some irretrievably: with Duke Otto of
          Bavaria against whom he made an unwarranted attack in 1233, with the Margrave
          of Baden, and with Godfrey of Hohcnlohe. Feuds among
          the princes themselves broke out and continued unchecked and uncontrolled.
          Matters were fast moving to a crisis. In September 1234 he issued a manifesto
          addressed to Conrad, Bishop of Hildesheim, in which he justified his past
          conduct and especially emphasised the services he  had rendered to his father while the
          latter was under sentence of excommunication. The letter clearly reveals how
          fundamentally Henry’s view of his own position differed from that of Frederick:
          the Emperor regarded his son merely as his representative in Germany, there to
          carry out implicitly his own commands; Henry considered himself as an
          independent ruler, free to act or to follow what line of policy he chose. A few
          days later at an assembly held at Boppard he made the first preparations for
          revolt; there “by threats, prayers, and money”, he began to canvass for
          supporters against his father, “and he found”, adds the Cologne chronicle, “not
          a few”. As a matter of fact, outside his intimate circle of ministeriales and lesser nobles he had not many
          adherents of any value. He had exacted an extraordinary oath of allegiance from
          several towns to aid him against every man, not excepting the Emperor himself;
          but when the time came not a single town put up the least show of resistance to
          Frederick’s advance. He had on his side a few bishops, those of Spires,
          Wurzburg, Worms, and Strasbourg, but not one secular prince except perhaps the
          quarrelsome Duke Frederick of Austria, and even he was ready to sell himself to
          the Emperor if the latter would supply him with money for his feud with the
          King of Bohemia. Henry also intrigued with foreign powers. He sent Henry of Neiffen and the Bishop of Wurzburg to attempt to detach
          Louis IX from his alliance with Frederick. The fact that the Emperor was
          at this time negotiating his marriage with Isabella, sister of Henry III of
          England, might indeed give him grounds for hope in this quarter. But thanks to
          the mediation of Pope Gregory, the marriage proposal did not affect the
          political relations between France and the Empire, and Henry’s plan failed.
          With better success he made overtures to the Lombard cities. On 17 December the
          Marshal, Anselm of Justingen, to whom the business
          was entrusted, arranged a treaty with them for ten years. This was the
          unforgiveable sin, an act of open treason whereby Henry placed himself on the
          side of the most determined enemies of the Empire, and its object too was
          outrageous: it was to prevent Frederick reaching Germany by getting the
          Lombards once more to bar the passes of the Alps.
   The moment for rebellion was
          ill-chosen. Frederick was now at the height of his power and at peace with the
          Church; for the Pope, who resented Henry’s lack of zeal in the matter of the
          German heretics, energetically supported the father against the son. He wrote
          letters of admonition, he threatened excommunication, he released the princes
          from the oaths of fealty they had taken to him. Frederick, confident in his own
          strength and his son’s weakness, was completely unconcerned by the turn events
          had taken. He did not even take an army with him when he set out by ship to
          Aquileia on his way to Germany. He merely took his court in all its glory and
          splendour, which duly impressed his German subjects with a sense of the
          greatness of their lord, his collection of wild animals, and a handful of
          soldiers. He had prepared the way for his coming by an encyclical letter
          addressed to the princes from Barletta. He flattered them, called them “the
          pupils of his eyes”, and declared that it was Henry’s oppressive measures
          against their class that made his presence in Germany imperative. Frederick was
          not disappointed in the trust he had imposed in them; they readily responded to
          his summons, and a large number of them met him when
          he appeared in Styria in May 1235. The rebellion crumpled up with surprising
          speed; Henry’s attack on Worms, which maintained the imperial cause against its
          bishop, failed completely; his supporters deserted in large numbers as
          Frederick advanced; he was prevailed upon by Herman of Salza,
          who always acted as mediator in quarrels in which the Emperor was concerned, to
          make his submission at Wimpfen, on the Neckar, where
          the Emperor held his court. Henry’s fate was not immediately decided; the
          question was postponed to the great diet held at Worms in July. Frederick was
          at first, it seems, inclined to a lenient course: Henry might have at least his
          liberty if he performed certain conditions, among them the surrender of the
          strong castle of Trifels; but failing to comply with
          the terms, he was thrust into prison first at Heidelberg, then at Alerheim near Nördlingen, and
          finally in Apulia, whither he was conducted by the Patriarch of Aquileia. There
          in one prison or another he eked out a wretched existence till 1242, when he died
          from cither a premeditated of accidental fall from his horse while journeying
          to the castle of Martorano.
           The diet of Worms which terminated the
          unhappy reign of Henry (VII) witnessed also a very different scene. For there
          was carried out, with all the pomp and gala celebrations for which Frederick’s
          court was famous, his third marriage with Isabella, the sister of Henry III of
          England. The negotiations for this had begun some time before: in November of
          the previous year Peter della Vigna had been dispatched
          to England; on 22 February the formalities were arranged at London. In May,
          accompanied by the Archbishop of Cologne, the Duke of Brabant, and the Bishop
          of Exeter, the princess sailed from Sandwich to Antwerp; thence she proceeded
          to Cologne, where she was welcomed amid great rejoicings and magnificent
          decorations. There she remained till six weeks later she was summoned to Worms
          for the marriage ceremony. Her brilliant reception was in tragic contrast to
          the grimness of her married life; she was soon to undergo the treatment which
          had worn out the youth and spirit of her predecessor, the Empress Yolande; she
          was placed under the close custody of Moorish eunuchs.
   Besides the obvious political
          consequence of bringing the Empire into closer and better relations with
          England, the marriage had another effect scarcely less important: it improved
          very greatly Frederick’s position in the north-west of Germany, in those
          districts of the lower Rhine which were so nearly bound to England by political
          and economic ties, and which had since the time of Frederick Barbarossa been
          the centre of revolts against the house of Hohenstaufen. It was a step towards
          the final reconciliation of the great family feud of the Wolfs and the Hohenstaufen.
          The present representative of the former house, Otto of Brunswick-Luneburg, had
          had the good sense not only to refuse the papal offer of the German crown at
          the time of the Emperor’s excommunication, but also to abstain from involving
          himself in the quarrel between Henry and his father. At the groat diet at Mayence in August he had his reward: he yielded up his
          possessions to the Emperor and received them back as the duchy of
          Brunswick-Luneburg with the much prized privilege of
          hereditary succession in the male and female line.
           The diet of Mayence,
          which took place a month after Frederick’s marriage with Isabella, was attended
          by nearly all the princes of Germany. Its object was the restoration of peace
          and order after the confusion and lawlessness which had prevailed almost unceasingly
          since the death of Engelbert of Cologne. The famous peace ordinance, which was
          promulgated both in Latin and in the vernacular language, was intended to
          secure as far as possible the maintenance of order and the regulation of
          justice even in the absence of the Emperor. It embodied much that had already
          been established in earlier constitutions, especially the Frankfort Landfriede issued by King Henry in 1234; but it also
          contained a great deal of new legislation. Severe punishments were prescribed
          for breach of the peace; private war might only be resorted to under certain
          circumstances, self-defence for example, and even then it must follow a carefully regulated procedure. For the better and more
          expeditious execution of the law a chief justice was set up as the head of a
          central court of judicature. The Emperor reserved to himself jurisdiction over
          princes and in other very important cases; he also kept in his hands the
          power of imposing the ban of the Empire and of removing it; but for the rest
          the justiciar was to be supreme. He was to be a freeman, and he was to hold
          office for at least a year. At his side was placed a lay notary whose
          duty it was to receive indictments, and to record sentences and rulings of the
          court to serve as precedents for the future. The Peace of Mayence was frequently confirmed by later kings; it became indeed not only the basis of
          all future peace legislation, but the starting point of the later development
          of the law of the Empire.
           The ecclesiastical princes were still
          the pillar of Frederick’s strength in Germany; twelve bishops had attended his
          entrance at the gates of Worms on 4 June. In the Peace of Mayence the liberties of the Church were confirmed; the oppression of the stewards
          restrained; tolls and mints and other regalian rights of the princes defended
          against usurpation. Nevertheless the towns, in spite
          of the severe measures taken against them in the Privilege of the Princes of
          1231 and in the edict of Ravenna of 1232, in spite also of the vigorous
          attempts of King Henry to win their support for his rebellion, had remained
          loyal to the Emperor, and received their reward in more sympathetic treatment.
          The Mayence Constitution contains few restrictions
          affecting them, and only one clause—the prohibition of the pfahlburgari and muntmanni (clause 13)—imposes a direct
          limitation on their power of development. During his stay in Germany between
          1235 and 1237 the Emperor was more generous in his charters to towns,
          especially of course to the imperial, such as Nuremberg and Oppenheim, but also
          to the episcopal towns; in the latter cases usually with the concurrence of the
          bishops, who were beginning to realise that it was not to their interest to
          struggle against the inevitable constitutional and economic advance of their
          cities.
           The Emperor spent the months before
          setting out on the campaign against the Lombards, which had been arranged at
          the diet of Mayence, in ordering the affairs of the
          kingdom, in making arrangements for the maintenance of
          peace, and in strengthening his territorial position. At Augsburg in the autumn of 1235 he bought out the claim of the King of
          Bohemia through his wife Cunigunda, daughter of King
          Philip, to a part of the Hohenstaufen estates in Swabia. Among his multifarious
          duties he found time to attend on 1 May 1236 the great ceremony of the
          translation of the bones of Elizabeth of Hungary, who had been canonised by
          Pope Gregory in 1234, to the church of Marburg.
   In the following June the army
          assembled in the Lechfeld for the conquest of Lombardy.
          The Emperor was, however, unable to lead his full strength across the Alps, for
          there remained in Germany one rebel whom he had not succeeded in reducing to
          obedience. This was Frederick, Duke of Austria, the last of the Babenberg
          dukes, a violent, quarrelsome, impetuous man, who had persistently disobeyed
          the Emperor’s summons, and whose conduct in the revolt of Henry (151) had been
          very dubious; he had in fact after the collapse of the rebellion welcomed at
          his court one of the ringleaders, Anselm of Justingen.
          At Augsburg in June 1236 he was placed under the ban
          of the Empire, and the princes of the south-east of Germany, the King of
          Bohemia, the Duke of Bavaria, and several bishops, were entrusted with its
          execution. This they accomplished with remarkable ease: the greater part of
          Austria and Styria, including Vienna itself, fell into their hands; so
          satisfied were they with their success that they returned home, leaving the
          Burgrave of Nuremberg in charge of their conquests. Duke Frederick immediately
          took the field, defeated the burgrave at Steinfeld to the south of Neustadt,
          captured the Bishops of Freising and Passau, and
          recovered the greater part of his possessions. The news of these events brought
          the Emperor back to Germany; he spent Christmas at Graz; in January 1237 he was
          in Vienna, which in April he made an imperial city. At the same time  hemade Styria directly dependent on the Empire. But his intention to do the same with
          Austria was too ambitious; preoccupied as he was with the affairs of Lombardy,
          he had not the time nor the military strength to spare for the undertaking. No
          sooner was his back turned than the duke again managed to establish his
          authority in the greater part of his duchy.
   The influence which Frederick had
          gained over the princes of Germany is shown by the ease with which he succeeded
          in inducing them to elect his son Conrad, then nine years old, as King of the Romans
          and future Emperor. This was done at Vienna in February and confirmed at Spires
          in July 1237. Born in Apulia in 1228, he had as an infant been recognised as
          King of Jerusalem (1229). He had accompanied his father to Germany in 1235 and
          might have been elected king at the great diet of Mayence had it not been for the opposition of the Pope. As it was, he was left as the
          nominal regent when Frederick recrossed the Alps in the summer of 1236. He now
          succeeded his imprisoned brother as king, and when the Emperor departed from
          Germany once more in August 1237, never to revisit it, Conrad remained behind
          as his representative under the guardianship of Siegfried, Archbishop of Mayence, who stood by him hot personal and in a public
          capacity: he was his magister et amicus, issued his documents as sacri imperii per Germaniam archicancellarius procurator; he occupied, that is to say, a position similar to that held by
          Archbishop Engelbert during the boyhood of King Henry. But like his brother,
          the young king soon surrounded himself with the official class, the Swabian and
          Franconian ministeriales, of whom
          Conrad of Winterstettin and Godfrey of Hohenlohe were
          the most prominent. It was men from this class who were chiefly responsible for
          his education, who became his intimate circle,  who acted as his advisers. But
          Frederick, warned by bitter experience, kept a watchful eye on his son’s
          upbringing; he would frequently write letters to him full fatherly counsel and
          of advice respecting the duties of a king.
   The uncompromising attitude adopted by
          the Emperor towards the Duke of Austria had unfortunate consequences. Neither
          the Duke of Bavaria nor the King of Bohemia, who had been the most urgent in
          pressing the Emperor to impose the ban and who had been among the foremost of
          those charged with its execution, desired to push matters to extremes. So much
          did they dislike Frederick’s plan of absorbing the duchy into the Empire that
          they not only ceased to take any active part in the war against the duke, but
          early in 1238 (7 March) they actually entered into an
          alliance with him against the Emperor. This was partly at any rate contrived by
          Pope Gregory, who intended to use the three princes of the south-east as
          instruments to work the ruin of Frederick in Germany. When on Palm Sunday (20
          March) 1239 Frederick was for the second time excommunicated, these princes at
          the instigation of the Pope broke out into open rebellion. They tried to raise
          up an anti-king to Frederick; but neither Abel, the second son of King Waldemar
          of Denmark, nor Robert of Artois, the brother of King Louis IX of France, who
          was approached later, were prepared to entertain the project. The general
          feeling in the country seems to have been that the sentence of excommunication
          was unjustified and occasioned by political motives; indeed not a bishop could be found to publish the sentence; the Landgrave of Thuringia
          and the Margrave of Meissen who had inclined towards the papal side were won
          back by the efforts of the Archbishop of Maynce; the
          three princes of Bohemia, Bavaria, and Austria stood alone. However much the
          other princes might differ in their views of the respective merits of the
          causes of Pope and Emperor—and they certainly differed very materially—they
          were at least unanimous in desiring peace, and at Eger on 1 June they agreed to
          entrust the task of mediation to Conrad of Thuringia, who had just succeeded
          Herman of Salza as Grand Master of the Teutonic
          Order; he died at Rome in June 1240 without having accomplished anything.
          However, the failure to do so was due to no fault of his own, but solely to the
          stubborn obstinacy of Gregory who wanted no peace. For him it was a fight to
          the death. Nevertheless he was disappointed in his
          hopes from Germany. He thought he would be able to rouse German sympathy for
          the papal cause; instead he found princes who wanted peace and people who were
          definitely hostile; the towns of South Germany sent contingents to fight
          Frederick’s battles in Lombardy; the clergy, especially in Bavaria, paid not
          the slightest regard to the excommunication; the Teutonic Order, to which
          Frederick had always been particularly generous in grants of lands and
          privileges, was solid in its support of its patron. And not the least
          shattering blow, the Duke of Austria in the autumn of 1239 was reconciled with
          the Emperor and reinstated in his dukedom; his example was soon followed by the
          King of Bohemia, and Otto of Bavaria alone remained to represent the papal
          party. But Gregory only redoubled his efforts to raise Germany against its
          Emperor: in November he instructed the bishops to publish the sentence of
          excommunication in all towns and villages with ringing of bells and burning of
          lights; he threatened to excommunicate all who gave their support to the
          Emperor; then early in 1240 he ordered a crusade to be preached against “the
          son of perdition”. But the more violent his methods became, the more stubbornly
          were they resisted. Moreover Gregory was singularly
          unfortunate in his choice of an agent. Albert Behaim,
          Archdeacon of Passau, enthusiastic to fanaticism as he was in his devotion to
          the Holy See, was tactless and injudicious, and he only embittered his
          opponents by his wholesale and unauthorised excommunications and interdicts.
          Not unlike Conrad of Marburg a few years earlier, he ruined a papal policy by
          excess of zeal. In the spring of 1240 he
          excommunicated half the bishops of Germany, including the chancellor,
          Siegfried, Bishop of Ratisbon, the Archbishops of Mayence,
          Treves, and Salzburg; he excommunicated the Duke of Austria, the Landgrave of
          Thuringia, the Margrave of Meissen; he excommunicated many cathedral chapters
          and abbots; he laid Austria under interdict and meted out the same treatment to
          those towns which had sent troops to assist the Emperor in Lombardy. The
          Archbishop of Salzburg and the Bishop of Brixen became so exasperated that they closed the passes of the Alps to prevent him
          from communicating with the Pope. Even the Duke of Bavaria grew tired of the
          extravagant conduct of the papal agent, and it was he who ultimately expelled
          him from Bavaria.
           While the Pope was devoting all the
          forces at his command, excommunications, crusades, intrigues, to crush the
          Emperor, and was refusing even to entertain overtures for peace, a real danger
          was threatening the whole Christian world. The Mongols, who during the early
          years of the thirteenth century had spread over the greater part of Asia, were
          now, under Batu Khan pressing farther and farther westward. They had subdued
          the Cumans on the north-west shore of the Black Sea. They had overrun southern
          Russia: Moscow and Vladimir fell in 1238; Kiev in 1240. They had pushed on into
          Poland, seized Cracow (March 1241), crossed the Oder, and defeated, and killed
          Duke Henry of Silesia, who attempted to check their advance, at Liegnitz (9
          April 1241). Simultaneously another swarm under Batu himself had crossed the
          Carpathians and attacked Hungary; the army of King Bela was surprised and
          annihilated, and the king fled to Austria for help. There was no doubt of the
          seriousness of the peril. The vast Mongolian army was not a mere horde of
          undisciplined barbarians; it was well organised, well trained, and well led.
          Frederick protested with some justice that he was himself unable to leave
          Italy, but he wrote to all the kings of Europe urging them to prepare to meet
          the common danger by united action. The bishops of Germany preached a crusade,
          King Conrad himself took the cross at Esslingen (19 May), and the army was to assemble
          for the campaign at Nuremberg on 1 July. But by then the imminent danger had
          passed. The Mongolian attacks on Bohemia and Austria had been successfully
          repulsed; then came the news of the death of the Great Khan Ogdai,
          and of the political disturbances in central Asia resulting from it. The
          Mongols withdrew eastward, and Germany was freed from the threat of invasion.
   During the last eight years of Frederick’s
          reign the Pope waged a relentless war for the extermination of the house of Hohenstaufen, a war which threw the whole of Germany into
          confusion and anarchy. Innocent IV, who was elected to the pontificate on 25
          June 1243, was more successful as a politician and as an agitator than Gregory
          IX had been, and he had better material to work upon; for no less a person than
          Siegfried, Archbishop of Mayence, Frederick’s
          vicegerent in Germany, deserted his post and turned papalist. He may have been
          influenced by the Emperor’s neglect of his country in the hour of need, for the
          latter had remained in Italy during the Mongolian invasion; it was even
          whispered, though of course without a particle of truth, that Frederick had
          himself invited in the Asiatic hordes. He may have considered the measures
          taken by Frederick against Pope Gregory, such as the seizure of the cardinals
          and bishops who were proceeding to the council at Rome in May 1241, as too
          violent to be honestly approved. It is enough that on 10 September 1241 he had
          an interview with Conrad, Archbishop of Cologne, who all along had had leanings
          towards the papal side, and concluded with him an
          alliance which was definitely directed against the Emperor. Shortly after, they
          were joined by Arnold of Isenburg, who after a
          disputed election became Archbishop of Treves. The three Rhenish archbishops
          with several of their suffragans formed a very powerful nucleus of an anti-Hohenstaufen
          party in Germany.
   The desertion of the Archbishop of Mayence necessitated fresh arrangements for the government
          of Germany, for Conrad was still but a boy, not yet fourteen years old. The
          changes carried out in 1242 mark a complete reversal of Frederick’s previous
          policy. He could no longer rely on the great churchmen in whom he had hitherto
          reposed his confidence and whom he had singled out for exceptionally generous
          treatment in the way of grants of lands and privileges; they had failed him. In
          the spring Henry Raspe, Landgrave of Thuringia, and
          Wenceslas, King of Bohemia, were named his deputies in Germany, each with the
          title sacri per Germaniam imperii procurator. But the appointment of two
          prominent lay princes was not the only indication that the Emperor had ceased
          to count upon the higher clergy. He now turned to the cities of Germany, not
          only to the imperial towns which he had generally patronised, but to the bishops towns which, in order to please their ecclesiastical
          masters, he had usually downtrodden, and he found that, with few exceptions,
          they rewarded his confidence and his bounty by staunch loyalty. Cologne itself
          was largely imperialist, influenced no doubt by the English alliance which
          resulted from the marriage of Frederick with Isabella; the burghers took part
          in the campaign which ended in the capture and imprisonment of their papalist
          archbishop (February 1242); it was only by granting extraordinary privileges
          that William of Holland ultimately gained admittance into the city (October
          1247).
   Worms enthusiastically supported
          Conrad, and in the fighting in the region of the upper Rhine in 1242-1243 they
          rendered him great service, especially with their fleet of boats which on one
          occasion sailed down the river and relieved the fortress of Castel which the
          Archbishop of Mayence was besieging. Erfurt suffered
          the imposition of an interdict rather than desert their king; the burghers of
          Ratisbon drove out their disloyal bishop, Siegfried, once the trusted
          chancellor of Frederick, and, when he died shortly after, they refused him
          burial within their city; Frederick handsomely rewarded them by expressly
          exempting them from the terms of the edict of Ravenna of 1232 and by permitting
          them to set up a town council with a burgomaster and civic officials
          independent of their bishop (November 1245). The financial support supplied by
          the towns compensated to some extent for the serious losses caused by the
          alienation and pawning of crown and personal property to which the Hohenstaufen
          were compelled to resort in order to gain assistance
          in other quarters.
           With the formal deposition of the
          Emperor at the Council of Lyons in July 1245 we enter on the last and the most
          deplorable phase of the war. In the autumn of the same year Innocent sent
          Philip of Ferrara as legate to Germany; he was the first of a series of legates
          commissioned with almost unlimited powers to carry out the Pope’s political
          aim—the overthrow of the Hohenstaufen and the election and recognition of an
          anti-king. The election of an anti-king was achieved without much difficulty:
          Henry Raspe, Landgrave of Thuringia, had joined the
          papal side in April 1244; he was really the only lay prince available, and he
          was chosen “at the Pope’s command” at Veitshochheim near
          Wurzburg on 22 May 1246, by the archbishops of the Rhineland and a few other
          bishops. Not a lay prince was present; it was merely an affair of the Church
          party; Henry was, as Albert of Stade justly calls him, rex clericorum. Indeed there was a
          strong feeling in the country, as the same author records, that the Pope was
          meddling in matters that were no business of his: the Pope was not concerned in
          the institution or in the deposition of an Emperor, but only in his coronation.
          Henry so far acknowledged that he was the instrument and the champion of Rome
          as to have the heads of SS. Peter and Paul engraved on the obverse of his seal.
   Nevertheless it was calmer to bring about the election of an anti-king than to win
          for him recognition. This had already been proved when Innocent III had tried
          to force Germany to accept Otto IV. Innocent IV was if possible more determined and certainly far less scrupulous in his methods than any of
          his predecessors. He and his agents stopped short at nothing; nothing was too
          dishonourable, too undignified, too unchristian, so long as it served their
          ends. Excommunication was pronounced against the supporters of the Hohenstaufen and
          their lands were laid under interdict. Masses ceased to be said in many
          churches throughout the country and in consequence large numbers were cut off
          from the exercise of their religion; their marriages were not recognised by the
          Church; their children went unbaptised; they were denied Christian burial. A
          crusade was proclaimed against Frederick and his son, and was actively preached by the mendicant orders in the villages and towns of
          Germany; those who had taken the cross for the redemption of the Holy Land were
          persuaded to perform their vow in the war against the Hohenstaufen. Every
          inducement was offered to entice imperialist clergy to turn papalist; while
          entrance into Holy Orders was deniecT not only to the
          actual partisans of Frederick but also to their sons and their grandsons, it
          was permitted even to the natural sons of the clergy who supported the Pope;
          the irregularities and crimes of the latter were connived at, and their sins
          were covered by dispensations. Bribery was practised on an enormous scale, and
          to provide the necessary money the Church, not only in Germany and Italy but in
          England, was taxed to the limit of its resources. Benefices were granted by
          papal provision as rewards for zeal in the cause of Rome; indeed in Germany practically all Church appointments were at this time controlled by
          the Pope’s agents. No chapter could proceed to the election of a bishop without
          first obtaining the advice and consent of the Pope or his legate; Innocent even
          stooped so low as to nominate a layman, Henry of Guelders, to the see of Liege
          and to dispense him from the obligation of consecration (1247), and he held his
          bishopric as a layman till his deposition in 1273.
           Henry Raspe at first met with success. King Conrad, who tried to prevent him holding his
          first diet which had been summoned to Frankfort, was defeated on 5 August 1246,mainly owing to the treachery of the Counts of Würtemberg
          and Grüningen who, bribed by the Pope with seven hundred marks of silver,
          deserted with two thousand Swabians. Henry was therefore able to hold his diet;
          but the fact that the legate, Philip of Ferrara, excommunicated and summoned
          to Rome no less than two archbishops, those of Salzburg and Bremen, ten
          bishops, and four abbots for non-attendance there, shows that even among the
          higher clergy there was still a preponderance that favoured the Hohenstaufen.
          The efforts of the anti-king were now directed to an attempt to subdue Swabia,
          the home of his opponents. At Frankfort he formally deprived Conrad both of the
          duchy and of his family possessions; some Swabian counts and nobles had already joined him; and in the winter 1246-7 he ventured to
          embark upon a campaign. He made however little headway; in January he laid
          siege to Ulm, but the stubborn resistance of the inhabitants and the severity
          of the weather forced him to abandon it. The winter campaign had seriously affected
          his health; he withdrew to the Wartburg near Eisenach, where he died in
          February 1247. He was the last of his house, which had ruled Thuringia for
          nearly a century and a half. It now escheated to the Empire and was in course
          of time granted by Frederick to Henry, Margrave of Meissen, who was connected
          by marriage with the last landgrave.
           The Thuringian landgraves had on many
          occasions during the civil disturbance of the last fifty years given trouble to
          the ruling house, which gained considerably by their end. Not many months
          before (June 1246) Duke Frederick of Austria died fighting against Hungary, and
          another of the great German families became extinct; for this turbulent prince
          was the last of the Babenbergs in the male line.
          Austria, like Thuringia, fell into the Empire, but contrary to feudal custom it
          was not regranted after the lapse of a year and a day, but was retained in the
          hands of the Crown and ruled by a captain-general. The arrangement, though it caused much internal discord, on
            the whole strengthened the Hohenstaufen position in the south-east.
          Indeed, this region, which had stood out prominently as the centre of papal
          influence in the crisis of 1239, was in 1246 a stronghold of the imperialists.
          Duke Otto of Bavaria, who on the former occasion had been the German champion
          of the papal cause, was now not only the ally but the father-in-law of Conrad
          IV. For the latter married the duke’s daughter Elizabeth in September 1246 at Vohburg. How seriously this alliance was regarded at the
          papal court may be judged from the letter written shortly before the marriage
          took place to Duke Otto by his former friend, Albert of Passau, who was at the
          time at Lyons with Innocent IV. He was willing to contrive that the Pope should
          annul the betrothal and arrange a better match for his (the duke’s) daughter; be would procure a reconciliation with Henry Raspe and the removal of the sentences of excommunication
          and interdict which the legate had imposed upon him and his dominions. He then
          made an alternative suggestion: he would get the Pope to confirm the marriage,
          and permit Conrad to retain Sicily and the kingdom of Jerusalem, provided that he would desert his father; Henry Raspe in this case would keep Germany and the Empire. That
          these proposals were made with the approval of Innocent there can be little
          doubt. Besides showing the importance the Pope attached to the friendship of
          Bavaria, it reveals the lengths he was prepared to go, the sacrifices he was
          prepared to make, to achieve the ruin of Frederick.
   The Bavarian marriage and the death of
          Henry Raspe were serious blows to Innocent’s policy.
          Moreover, among the powers of Europe the Pope had not met with the sympathy he
          had hoped for; the Kings of England and France ignored the sentence of
          deposition pronounced at the Council of Lyons, and continued to regard and to address Frederick as Emperor. If the Pope’s
          arbitrary methods of appointing papalists to German bishoprics gave him the
          controlling hand over the higher clergy, he failed completely to shake the
          loyalty of the lay princes. It was not an easy matter to find a suitable
          successor to Henry Raspe; and the choice finally fell
          on a young man who was not even of princely rank, William, the Count of
          Holland. He was elected in the presence of Peter Capocci,
          the legate who had taken the place of Philip of Ferrara, at Worringen near Cologne on 3 October. Besides the ecclesiastics, he was supported by one
          layman of a substantial position, his uncle the Duke of Brabant. But essentially he was another rex clericorum. Although by his family connexions he had influence in the districts of the
          lower Rhine, he nevertheless found it by no means easy to gain access to the
          principal towns. He won Cologne by a quite exceptional charter: besides
          granting privileges in the way of tolls and jurisdiction, he bound himself to
          lead no army into the city, to hold no diet within its walls, to build no
          fortress on its territory, to impose no taxation upon its inhabitants; he
          resigned in fact all royal prerogatives in its favour. In consequence of this
          we find him seldom in the chief town of the lower Rhine, and then only on
          peaceable business; he was present at the ceremony of laying the foundation stone
          of the new cathedral (July 1248), and there also he was received at the house
          of the Dominicans by the schoolman Albertus Magnus (January 1249). But it was
          not, as it had been under Otto IV, the political and military centre of this
          Netherland king. It took him several months to force his way into Aix-la-Chapelle where, a little
            more than a year, after his election, he was crowned by Archbishop Conrad of
            Cologne in the presence of two legates (1 November 1248). The royal fortress of Kaiserswerth was only starved into submission after a
            siege lasting a whole year. Boppard held out against three separate attacks and
            only succumbed when besieged for the fourth time in August 1251. In these first years he was kept fully occupied in improving his
              position in those parts where his kingship was more or less
                acknowledged, by making grants and confirming charters and by a
              judicious use of the papal money placed at his disposal; in this way Duke
              Matthew of Lorraine was brought over to his side. He was also engaged in feuds
              in his own country—one particularly long and troublesome with Margaret of
              Flanders. So he seldom ventured far afield during
              Frederick’s lifetime. He made however two expeditions up the Rhine; on the
              first of these, in 1249, he captured Ingelheim, where he confirmed the old
              Eger Bull of Frederick II in favour of the Pope. But during the siege he
              suffered severe blow: his most powerful supporter, Archbishop Siegfried of Mayence, fell ill and was taken to Bingen where he died. His successor, Archbishop Christian, was a peaceable person and
              altogether disinclined to fight for the papal cause by the means prescribed by
              Innocent IV; he was indeed deposed from his see for his inactivity in this
              respect in July 1251. With Siegfried of Mayence,
              William of Holland and the Pope lost their greatest champion in Germany. The
              capture of Ingelheim was the only result of the campaign; William attacked but
              failed to capture Frankfort in July; but by the autumn he was back in the Low
              Countries without having struck a serious blow at his opponents. The second
              campaign up the Rhine in the summer of the next year was still less eventful.
              Conrad was also in the field, and on one occasion the two rivals were encamped
              within a few miles of each other in the neighbourhood of Oppenheim; but William
              would not risk a pitched battle and withdrew. At the end of the year he was still only king in the district of the Lower
              Rhine; in the east of Germany he was ignored; in the south he was bitterly
              opposed. Up to the time of the Emperor’s death at Fiorentino in December 1250
              the policy of Innocent IV in Germany had met with little real success. He had
              set up two anti-kings, but neither had been recognised outside a comparatively
              small area; all he had achieved was to introduce chaos and anarchy, civil war and bloodshed, into the whole of Germany.
               
 
 CHAPTER
          IV
   THE INTERREGNUM IN GERMANY
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