Swedish Intervention
Period: 1630-1635
The Swedes, led by Gustavus Adolphus, attacked the Empire. He landed in Germany with an army because he was a Lutheran and came to aid the German Lutherans, and because he wanted economic influence in the German states around the Baltic Sea. The Swedes also feared Catholic aggression against their Protestant country. Adolphus was subsidized by Richelieu the Chief Minister of King Louis XIII of France, and by the Dutch. From 1630-1634, they drove the Catholic forces back and regained much of the occupied Protestant lands.
Ferdinand II depended on the Catholic League since he had dismissed Albert of Wallenstein. At the Battle of Breitenfield (1631), Adolphus defeated the Catholic League led by General Tilly. A year later, they met again, and this time General Tilly was killed (1632). With General Tilly dead, Ferdinand II turned to the aid of Wallenstein and his large army.
Wallenstein and Adolphus clashed in the battle of Lützen (1632), but they came to a draw (though Adolphus was killed (1632)). In 1634 the Swedes were defeated at the battle of Nördlingen, but they continued to take part in the war to the end. In parallell to the Thirty Years' War Sweden was involved in a conflict with Denmark between 1643-1645, called the Torstenson War. The favourable outcomes of that conflict and the conclusion of the great European war at the Treaty of Westphalia in 1648 helped establish the position of post-war Sweden, as a great power in Europe.
After that, Albert of Wallenstein began to control the direction of the Thirty Years' War, and he called for the toleration of Protestants. Ferdinand II feared Wallenstein would switch sides, so he hired an Irish mercenary who was one of Wallenstein's soldiers to kill Wallenstein. The Irish mercenary killed Wallenstein while he camped at in the town of Eger (February 24 1643). After that, the two sides met for negotiations, and they ended the Swedish Period with the Peace of Prague (1635), which:
- Reestablished the date that the Peace of Augsburg established to be the date (1552) from which the landholdings of the Protestants (Lutherans) and Catholics was to remain the same from 1552 to 1627, effectively nullifying the Edict of Restitution.
- Legalised Calvinism.
- Effectively dissolved the religious issues of the Thirty Years' War.
- Failed to satisfy the French, because the Habsburgs remained powerful; thus they began the last period of the Thirty Years' War called the French Period.