Their biggest military conflict began with Maurice of Saxony's war on John Frederick
This group's victory at the Battle of Lauffen restored Duke Ullrich to power, and a small faction of it defeated Eric II of Calenberg at the Battle of Drakenburg. The successor to a similar group formed at Torgau, it was first supported by Denmark, who then backed out via the Treaty of Speyer. The Treaty of Crepy eliminated French support of it. Their biggest military conflict began with Maurice of Saxony's war on John Frederick I, one of this group's founders along with Philip of Hesse. For 10 points, name this group subjected to the Augsburg Interim after their defeat by the Duke of Alba and Charles V at M?hlberg, a Protestant defense league established in 1531.
This group's victory at the Battle of Lauffen restored Duke Ullrich to power, and a small faction of it defeated Eric II of Calenberg at the Battle of Drakenburg.
Schmalkaldic League [or Schmalkaldischer Bund]