So great was the disturbance caused by his fanatical teachings and the exertions of his disciples that Luther again bestirred himself, and called on the princes for the suppression of Muenzer and his fanatical horde. A division of the army was sent into Thuringia, and came up with a large body of the Anabaptists near Frankenhausen, on May 15, 1525. Muenzer was in command of the peasants. The army officers, hoping to bring them to terms by lenient measures, offered to pardon them if they would give up their leaders and peacefully retire to their homes. This offer might have been effective but for Muenzer, who, foreseeing danger to himself, did his utmost to awaken the fanaticism of his followers. It happened that a rainbow appeared in the heavens during the discussion. This, he declared, was a messenger sent to him from God. His ignorant audience believed him, and for the moment were stirred up to a mad enthusiasm which banished all thoughts of surrender. Rushing in their fury on the ambassadors of peace and pardon, they stabbed them to death, and then took shelter behind their intrenchments, where they prepared for a vigorous defence. Their courage, however, did not long endure the vigorous assault made by the troops of the elector. In vain they looked for the host of angels which Muenzer had promised would come to their aid. Not the glimpse of an angel's wing appeared in the sky. Muenzer himself took to flight, and his infatuated followers, their blind courage vanished, fell an easy prey to the swords of the soldiers. The greater part of the peasant horde were slain, while Muenzer, who had concealed himself from pursuit in the loft of a house in Frankenhausen, was quickly discovered, dragged forth, put to the rack, and beheaded, his death putting an end to that first phase of the Anabaptist outbreak. [Illustration: OLD HOUSES AT MUeNSTER.] After this event, several years passed during which the Anabaptists kept quiet, though their sect increased. Then came one of the most remarkable religious revolts which history records. Persecution in Germany had caused many of the new sectarians to emigrate to the Netherlands, where their preachings were effective, and many new members were gained. But the persecution instigated by Charles V. against heretics in the Netherlands fell heavily upon them and gave rise to a new emigration, great numbers of the Anabaptists now seeking the town of Muenster, the capital of Westphalia. The citizens of this town had expelled their bishop, and had in consequence been treated with great severity by Luther, in his effort to keep the cause of religious reform separate from politics. The new-comers were received with enthusiasm, and the people of Muenster quickly fell under the influence of two of their fanatical preachers, John Matthiesen, a baker, of Harlem, and John Bockhold, or Bockelson, a tailor, of Leyden.