Lollard writer. At Oxford he became a supporter of J. Wycliffe and by 1382 he was preaching Wycliffite doctrines. For this he was condemned and twice imprisoned. He seems to have recanted c.1391, in 1394 became a canon of Hereford, and in 1417 a Carthusian monk. His name has been associated with the earlier of the Wycliffite translations of the Bible into English.