sentences:  Sometime after 1037, he was appointed Archbishop of Ohrid, prior to which he had held the position of "chartophylax" in the Hagia Sophia in Constantinople.Under Patriarch Michael Keroularios (1043–59), Leo was sent as the spokesman of Constantinople to theological debates with clergymen representing the Pope of Rome in southern Italy.He reiterated his views in a 1053 letter to the bishop John of Trani, which was however addressed to the Pope and all Latin bishops.