antipope to Benedict XIII and Gregory XII from 1410 to 1415. He was crowned Pope in 1410, but the validity of his election has been contested as being simoniacal. Of the three Popes then existing he had most supporters. In 1413 he convoked a General Council to end the Great Schism; it met at Constance. He soon fled from Constance to deprive the Council of authority. He was brought back by force and deposed in 1415.