Christian Heresies of the
Fourteenth Century:

Lollards of John Wycliffe:
    Rejected the episcopacy of the Church; denied the authority of the Pope; the universe and God are one; that creation was an emanation of God; believed in predestination; denied the Real Presence; held the veneration of sacred images to be unlawful. Declared a heretic by the Council of Constance (1414-1418). The Catholic Church declared over 40 of Wytcliffes Theses as Heretical.
    A preparation for the Protestant Reformation with the Hussites and Moravian movements of the fifteenth century.
    The name Lollards applied to the followers of John Wyclife, who was born at Ipreswel (now Hispwell) near Richmond, Yourkshire, England, probably some years earlier than 1324. He studied at Oxford and in 1356 began to publish his works. His doctrines were condemned in 1382 by a synod of twelve theologians, and two years later Wyclif died. He was formally declared a heretic by the Council of Constance (1414-1418).

http://www.catholicapologetics.net/apolo_48.htm
http://www.courses.fas.harvard.edu/~chaucer/special/varia/lollards/lollards.html
John Wycliffe