William of Auxerre

William of Auxerre ( Guillelmus Autissiodorensis; † November 3, 1231 () in Rome? ) Was a major theologian of the early scholasticism.

William of Auxerre was Magister at the University of Paris and Archdeacon of Beauvais. He was one of the three authors, who were commissioned by Pope Gregory IX, to participate in a new edition of the physics and metaphysics of Aristotle, as the issue in circulation had been banned because of the presence "errors" of the Curia.

His most influential teacher was Praepositinus, also called Prevostin of Cremona, Chancellor of the University of Paris from 1206 to 1209. Wilhelm was a teacher of John of Treviso, one of the first theologians of the new Order of Preachers of the Dominicans.

His main work is a comprehensive theological sum, the so-called "Summa aurea ". He also wrote a liturgy statement, the "Summa de Officiis ecclesiasticis ". A commentary commentary on the anti- Claudian of Alanus from Insulis survives in only a single manuscript, and is so far not in any edition.