Alegrin, Jean a French prelate, was born at Abbeville, in Picardy, about the middle of the 12th century. He was, at different times, archbishop of Besancon, bishop of Sabina, and cardinal and Latin patriarch of Constantinople. Under Gregory IX he was sent as legate a latere to Spain and Portugal; and died in 1237 or 1240. He wrote a Commentaire sur les Psaumes de David: — Sermons: — Panegyriques: — and Expositions of the Epistles and Gospels (Paris, 1521). See Hoefer, Nouv. Biog. Gen., s.v.