1531
1531 was a year of notable religious and political realignments in early modern Europe. In the Holy Roman Empire, Lutheran princes and cities formed the Schmalkaldic League, a defensive coalition intended to coordinate opposition to imperial policy under Charles V. The alliance brought together leading Protestant rulers, including Elector John Frederick I of Saxony and Philip I, Landgrave of Hesse, and it helped shape the political and religious landscape of the empire in the years that followed.
In Switzerland, the Second Battle of Kappel occurred on October 11 near Kappel am Albis. Catholic cantons
Together, these events illustrate the era’s pattern of religious reform intensifying political and military conflict across