Leo I the Thracian
Its bishop Marinus was at the [[First Council of Constantinople]] in 381. Stephanus did not go to the [[Council of Chalcedon]] in 451, but metropolitan bishop Basilius of Seleucia signed the acts on his behalf, and he himself signed the joint letter that the bishops of the province wrote to Emperor [[Leo I the Thracian]] in 458 regarding the murder of [[Proterius of Alexandria]]. Constantinus was at the [[Third Council of Constantinople]] in 680 and Cosmas at the [[Trullan Council]] in 692. Another Constantinus was at the [[Second Council of Nicaea]] in 787.