John Wycliffe

Wycliffe was an Oxford philosopher and theologian who became, in the last decade of his life, one of the most disruptive voices in the late medieval church — though he died in his own bed, a parish priest in Lutterworth. His academic work on logic and metaphysics gave way to increasingly radical arguments: that ecclesiastical authority derived from grace rather than office, that temporal lordship was forfeit in those who abused it, and that scripture — in the vernacular — was the standard by which all church teaching should be judged. He did not leave the church he criticised; he remained a priest within it, and his framework remained broadly orthodox even where his conclusions were not. His followers translated the Bible into English and spread his ideas widely enough that the Council of Constance condemned him posthumously and ordered his bones exhumed. He is labelled here as Roman Catholic — the most historically accurate description — though his work sits in unmistakable tension with that tradition's institutional claims.