jan, of Kromeriz) (d.1374. Reformer. Born in Kremsier, Moravia, he served in the chancery of Charles IV before becoming a priest, canon, and finally archdeacon in Prague. As a wealthy prelate he embraced poverty to preach the simplicity of the early church, openly attacking the laxity of laity and clergy in 1363. in Rome ordered his imprisonment for preaching that the Antichrist had arrived in 1367, but Urban V ordered his release and he worked with outcast women in Prague, founding a home for them in 1372. In 1373 the clergy of Prague denounced his preaching, but cleared him of all charges in Avignon, where he died.