Afterwards, the exarchate became a semi-client state under a new exarch called Gennadius. Bishop Angaelos OBE, Bishop of the Holy Diocese of London and Patriarchal Exarch. Now the Emperor ordered his Exarch of Ravenna to arrest the Pope. The peninsula, depopulated and devastated, was ruled by an exarch from Ravenna. The Georgian Byzantine Catholic Exarch, Fr. Olympius, the Byzantine exarch of Ravenna, came to Sicily to oust the invaders but failed. Ravenna remained the seat of the exarch until the revolt of 727 over iconoclasm. Ravenna remained the seat of the Exarch until the revolt of 727 over Iconoclasm. In practice, the papal efforts served to focus Lombard aggrandizement on the exarch and Ravenna. The service was conducted by Bishop Stefan, the future Bulgarian Exarch. Eutychius, the last exarch of Ravenna, was killed by the Lombards in 751. The clemency of the pope allowed the Exarch of Ravenna to escape with his life. It is headed by a bishop or a priest with the title of exarch. The Byzantine Exarch of Ravennan Italy named Theophylact, between 702-709, originally came from Sicily. Local ecclesiastical development in some regions also included the title of exarch.