Domnulus bishop of Marseilles in the 7th century Domnus is the name of three ancient bishops of Antioch:
(1) son of Demetrianus, appointed by the Council of Antioch, A.D. 269, without the voice of the clergy or people, and was installed in office three years later by a decree of the emperor. He held the see only a few years;
(2) nephew of John of Antioch, on whose death in 441 he was elected bishop, and attained great popularity. He was afterwards involved in the Athanasian controversy, and after many vicissitudes was finally expelled from the see, and retired to the laura of St. Euthymius of Palestine, A.D. 452;
(3) a Thracian, appointed by Justinian in 546, and occupied.. the see fourteen years.