William (né Adgar; fl.
1150–1200), later called William the Trouvère, was an English poet.
He translated tales from the Latin Miracles of the Virgin into Anglo-Norman verse.
Working at the instance of one Gregory, his friend, he translated over forty tales into octosyllabic Anglo-Norman verse, from the Latin collection of Miracles of the Virgin which he found in the almarie or bookcase of St.
[2] His collection of some forty-nine tales, entitled Gracial,[3] was dedicated to one Maud, "dame Mahaut", most likely the abbess of Barking (c. 1175–1195) who was a bastard of Henry II.