sentences:  Thomas Becket, then Henry's chancellor but later to be famous for his dispute with Henry over ecclesiastical privileges, was one of Hilary's chief opponents at this council.Eventually, the case was decided by persuading Hilary to renounce any episcopal claims on the abbey.Henry II's biographer, the historian W. L. Warren, suggests that Hilary was pressed to bring the case against Battle Abbey by his cathedral chapter and that Hilary did not pursue the case vigorously.