archbishop of Milan, was raised to the archiepiscopacy in 1093, and was almost immediately deposed by the apostolic legate. He resumed his functions in 1095, after having made a reconciliation with Rome; accompanied Urban II to the meeting at Clermont; and preached in favor of the Crusade in the provinces of Lombardy. He was sent as an ambassador to the emperor Henry IV. In Argellati we find mention of a volume of Arnolfe, or Arnoul, entitled Concdones ad Populum, ut Crucem suscipiant. See Hoefer, Nouv. Biog. Generale, s.v.