and criticised the Church and the papacy, but concentrated upon the selling of indulgences and doctrinal policies about purgatory, particular judgment, and the authority of the pope. He would later in the period 1517–1521 write works on devotion to Virgin Mary, the intercession of and devotion to the saints, the sacraments, mandatory clerical celibacy, and later on the authority of the pope, the ecclesiastical law, censure and excommunication, the role of secular rulers in religious matters, the relationship between Christianity and the law, good works, and monasticism. Some nuns, such as Katharina von Bora and Ursula of Munsterberg, left the monastic life when they accepted the Reformation, but other orders adopted the Reformation, as Lutherans continue to have monasteries today. In contrast, Reformed areas typically secularised monastic property. Reformers and their opponents made heavy use of inexpensive pamphlets as well as vernacular Bibles using the relatively new printing press, so there was swift movement of both ideas and documents. Magdalena Heymair printed pedagogical writings for teaching children Bible stories. Parallel to events in Germany, a movement began in Switzerland under the leadership of Huldrych Zwingli. These two movements quickly agreed on most issues, but some unresolved differences kept them separate. Some followers of Zwingli believed that the Reformation was too conservative, and moved independently toward more radical positions, some of which survive among modern day Anabaptists. After this first stage of the Reformation, following the excommunication of Luther in Decet Romanum Pontificem and the condemnation of his followers by the edicts of the 1521 Diet of Worms, the work and writings of John Calvin were influential in establishing a loose consensus among various churches in Switzerland, Scotland, Hungary, Germany and elsewhere. Although the German Peasants' War of 1524–1525 began as a tax and anti-corruption protest as reflected in the Twelve Articles, its leader Thomas Müntzer gave it a radical Reformation character. It swept through the Bavarian, Thuringian and Swabian principalities, including the Black Company of Florian Geier, a knight from Giebelstadt who joined the peasants in the general outrage against the Catholic hierarchy. In response to reports about the destruction and violence, Luther condemned the revolt in writings such as Against the Murderous, Thieving Hordes of Peasants; Zwingli and Luther's ally Philipp Melanchthon also did not condone the uprising. Some 100,000 peasants were killed by the end of the war. Radical Reformation The Radical Reformation was the response to what