Peter Chrysolanus an Italian prelate, was born in the latter part of the 11th century. He was raised to the archbishopric of Milan in 1110, having previously held some less important see. He was sent by pope Paschal II on a mission to the emperor Alexius I Comnenus, and engaged eagerly in the controversy on the procession of the Holy Spirit. His principal work is, Ad Imperatorem Dominum Alexium Conzenum Oratio, etc., designed to prove the procession of the Holy Spirit from the Son as well as from the Father, published in the Graecia Orthodoxa of Allatius, 1:379, etc. (Rome, 1 652, 4to), and given in a Latin version by Baronius, Annal. Eccles. ad ann. 1116, volume 8, etc.