Leo I the Thracian
Its diocesan bishops included Otreius, who was at the First Council of Constantinople in 381, and Adolius at the Council of Chalcedon in 451, Adelphius, who was a signatory of the 458 letter of the bishops of the province of Armenia II to Byzantine Emperor Leo I the Thracian to protest at the murder of Proterius of Alexandria, the writer Leontius, who came later, and Georgius, who was at the Trullan Council of 692. Michael the Syrian mentions several Jacobite Church bishops of Arabissus of the 7th to the 10th centuries. Its titular bishops include Stephen Peter Alencastre (1924–1940).