Wulfstan, d. 1023, English churchman, archbishop of York (1003-1023) and bishop of Worcester, whose Latin name was Lupus. He is buried at Ely. Homilies are attributed to him, but most of them are doubtful; from them as from those of Ælfric written for Wulfstan, many details of English law were derived. A homily on the millennium in English alliterative prose, styled Lupi sermo ad Anglos [Wulfstan's address to the English], is usually ascribed to him.