As a result of the development of arbitrary rule the lower classes had great reason to complain of the increase of taxation and of the difficulties of obtaining justice in the ordinary courts of law. They were ready to listen to the advice of interested leaders, who urged them to band together in defence of their rights against the usurpation of land owners and kings. As a result nearly every country in Europe found itself involved in a great struggle. The Peasants' War in Hungary (1514), the revolt against Charles V. in Spain (1520), the resistance of the Flemish Communes, led by Ghent, to the ordinances of the Dukes of Burgundy, the discontent of the lower classes in France with the excessive taxes levied by Louis XI., and the secret associations which prepared the way for the great uprising of the lower classes in Germany (1524), were clear indications that oppression and discontent were not confined to any particular country in Europe. With all these political developments the interests of religion and of the Church were closely connected. Even though it be admitted that in themselves there is no real opposition between Nationalism and Catholicism, yet in the circumstances of the time, when national rivalry was acute, the dependence of the Holy See upon any particular nation was certain to excite serious jealousy. From that time nations began to regard the Pope as an ally or an enemy according to the side he favoured instead of looking to him as a common father, and consequently the danger of a conflict between national patriotism and loyalty to the Head of the Church was rendered less improbable. This feeling was increased by the residence of the Popes at Avignon, when the Holy See was so completely associated with the interests of France, and by the policy pursued by Sixtus IV. and his successors in regard to the Italian States. Nowhere, however, was this opposition to the Papacy manifested more clearly than in Germany. This was due partly to the growing feeling of antipathy between the Teutonic and the Latin races, partly to the tradition of the great struggle of the thirteenth century in which the Emperors were worsted by the Popes, and partly also to the discontent excited amongst all classes of the German people, lay and cleric, by the taxations of the Curia. The attitude of the three ecclesiastical electors in 1455, the complaints of the clergy in 1479, and the list of /Gravamina/ presented to Maximilian in 1510 were harbingers of the revolution that was to come.