Protestants took up arms against the local bishop Franz von Waldeck, forcing him to leave the city. The latter, gathered troops, immediately began the siege of Munster, but for a long time could not completely block the road leading to the city. In Munster began to flock rebel supporters, German and Dutch Anabaptists. The leader of the movement was a former baker, Dutchman Jan Matthys, who was influenced by the ideas of Hoffmann. Anabaptists gained prevailing position in Munster. Mathis said that all adult residents of the city, which will not accept second baptism will be executed as "godless." During the next week the majority of Catholics and even some Lutherans left Munster. The remaining residents were forced to be baptized again, driving naked on almost empty thyself river ice (it was the beginning of March).