I and Joachim I.  Weakened by the defection of Albert Alcibiades II, it pressed on to fight its namesake war, which ended at Muhlberg with its disbandment.  
In response to it a rival group was formed by Archduke Ferdinand I and Joachim I.  Weakened by the defection of Albert Alcibiades II, it pressed on to fight its namesake war, which ended at Muhlberg with its disbandment.  It refused admission to William, Duke of Cleves, who turned to Francis I of France, a secret ally of this group.  Zwingli turned down an offer for his Swiss cantons to join it despite heavy pressure from its founders, John Elector of Saxony, and Phillip, Landgrave of Hesse.  Created in 1531, FTP, name this alliance of German princes that resisted Charles V's attempts to stamp out Lutheranism.
In response to it a rival group was formed by Archduke Ferdinand
Schmalkaldic League