Drei Bünde
The Milanese reeve of Como, Gian Giacomo Medici, who resided in castle of Musso, had been raiding the valley of Chiavenna since 1521. In 1524, in alliance with the Prince-Bishopric of Chur, he attempted to conquer the Three Leagues. In 1525 his forces were defeated at the Battle of Morbegno but he remained in control of Chiavenna. Following the battle, the Three Leagues sent a delegation headed by Gian Travers to negotiate a peace treaty with the city of Milan. However, while en route they were captured and imprisoned by Medici in September 1525. Due to religious conflicts following the Reformation, neither the Swiss Confederation nor the Three Leagues were able to move quickly to free the prisoners. In the spring of 1526 a Three Leagues delegation, with the support of France and Venice, were finally able to secure the release of the prisoners, but only after paying a ransom and giving the Tre Pievi or three communes at the north end of Lake Como to Medici.