POLITICAL FRICTION
Politics, as well as religion, also helped to bring about the great conflagration. The Roman Catholic party relied for support on the Hapsburg emperors, who wished to unite the German states under their control, thus restoring the Holy Roman Empire to its former proud position in the affairs of Europe. The Protestant princes, on the other hand, wanted to become independent sovereigns. Hence they resented all efforts to extend the imperial authority over them.
THE BOHEMIAN REVOLT
The Thirty Years' War was not so much a single conflict as a series of conflicts, which ultimately involved nearly all western Europe. It began in Bohemia, where Protestantism had not been extinguished by the Hussite wars. [37] The Bohemian nobles, many of whom were Calvinists, revolted against Hapsburg rule and proclaimed the independence of Bohemia. The German Lutherans gave them no aid, however, and the emperor, Ferdinand II, easily put down the insurrection. Many thousands of Protestants were now driven into exile. Those who remained in Bohemia were obliged to accept Roman Catholicism. Thus one more country was lost to Protestantism.
DANISH INTERVENTION
The failure of the Bohemian revolt aroused the greatest alarm in Germany.
Ferdinand threatened to follow in the footsteps of Charles V and to crush
Protestantism in the land of its birth. When, therefore, the king of
Denmark, who as duke of Holstein had great interest in German affairs,
decided to intervene, both Lutherans and Calvinists supported him. But
Wallenstein, the emperor's able general, proved more than a match for the
Danish king, who at length withdrew from the contest.
EDICT OF RESTITUTION, 1692 A.D.
So far the Roman Catholic and imperial party had triumphed. Ferdinand's success led him to issue the Edict of Restitution, which compelled the Protestants to restore all the Church property which they had taken since the Peace of Augsburg. The enforcement of the edict brought about renewed resistance on the part of the Protestants.
GUSTAVUS ADOLPHUS AND THE INTERVENTION OF SWEDEN
There now appeared the single heroic figure on the stage of the Thirty Years' War. This was Gustavus Adolphus, king of Sweden, and a man of military genius. He had the deepest sympathy for his fellow-Protestants in Germany and regarded himself as their divinely appointed deliverer. By taking part in the war Gustavus also hoped to conquer the coast of northern Germany. The Baltic would then become a Swedish lake, for Sweden already possessed Finland and what are now the Russian provinces on the Baltic.