High Quality Content by WIKIPEDIA articles! William Warelwast, sometimes known as William de Warelwast (died 1137) was a medieval Norman cleric and Bishop of Exeter in England. Warelwast was a native of Normandy, but little is known about his background before 1087, when he appears as a royal clerk for King William II of England. Most of his royal service to William was as a diplomatic envoy, as he was heavily involved in the king`s dispute with Anselm, the Archbishop of Canterbury, which was the beginning of the Investiture Controversy in England. He went several times to Rome as an emissary to the papacy on business related to Anselm, one of whose supporters, the medieval chronicler Eadmer, alleged that Warelwast bribed the pope and the papal officials to secure favourable outcomes for King William.