John Wycliffe:
English theologian, philosopher, church reformer and promoter of the first complete translation of the Bible into English. He was one of the forerunners of the Protestant Reformation. In 1378 he began a systematic attack on the beliefs and practices of the Church. The Lollards, a heretic group, propagated his controversial views
Jan Hus:
The most important 15th-century religious reformer, whose work was transitional between the medevil and reformation periods and anticipated the Lutheran reformation by a full century. He was embroiled in the bitter controversy of the Western Schism for his entire career, and he was convicted of heresy at the Council of Constance and was burned at the stake.