od. Lect. ii. 31, pp. 563, 567; Theophanes p. 134), and the very day of his enthronement solemnly pronounced in his church an anathema on Chalcedon, and accepted the Henoticon he had previously repudiated. He had the name of Peter Mongus inscribed in the diptychs; entered into communion with the Non-Chalcedonian prelates, Timotheus of Constantinople and John Niciota of Alexandria; and received into communion Peter of Iberia and other leading members of the Acephali (Evagr. H. E. iii. 33; Labbe, iv. 1414, v. 121, 762; Theod. Lect. l.c.). Non-Chalcedonianism seemed now triumphant throughout the Christian world. Proud of his patriarchal dignity and strong in the emperor's protection, Severus despatched letters to his brother-prelates, announcing his elevation and demanding communion. In these he anathematized Chalcedon and all who maintained the two natures. While many rejected them altogether, Non-Chalcedonianism was everywhere in the ascendant in the East, and Severus was deservedly regarded as its chief champion (Severus of Ashmunain apud Neale, Patr. Alex. ii. 27). Synodal letters were exchanged between John Niciota and Severus, which are the earliest examples of communication between the Oriental Orthodox sees of Alexandria and Antioch that have continued to the present day.
The triumph of Severus was, however, short. His possession of the patriarchate of Antioch did not survive his imperial patron. Anastasius was succeeded in 518 by Justin I, who embraced the beliefs of Chalcedon. The Non-Chalcedonian prelates were everywhere replaced by Chalcedonian successors, Severus being one of the first to fall. Irenaeus, the count of the East, was commissioned to arrest him but Severus departed before his approach, setting sail one night in September 518 for Alexandria (Liberat. Brev. l.c.; Theophanes, p. 141; Evagr. H. E. iv. 4). Paul I was ordained in his place. Severus and his doctrines were anathematized in various councils, while at Alexandria he was gladly welcomed by the patriarch Timotheos III and his other fellow doctrinarists, being generally hailed as the champion of the orthodox faith against the corruptions of Nestorianism. His learning and persuasion established his authority as "os omnium doctorum," and the day of his entrance into Egypt was long celebrated as a Coptic/Jacobite festival (Neale, u.s. p. 30). Alexandria soon became a refuge of Non-Chalcedonians of every shade of opinion, becoming too numerous for the emperor to molest. But within this group fierce controversies sprang up on various subtle questions of Christology, one of which involved Severus and his fellow-exile Julian of Halicarnassus as to the corruptibility of Christ's human body before His resurrection. Julian and his followers were styled Aphthartodocetae and "Phantasiastae," Severus and his adherents "Phthartolatrae" or "Corrupticolae," and "Ktistolatrae." The controversy was a heated and protracted one and while no settlement was arrived at, the later Oriental Orthodox claim the victory for Severus (Renaudot, p. 129).
After some years in Egypt spent in continual literary and polemical activity, Severus was unexpectedly summoned to Constantinople by Justin's successor Justinian I, whose consort Theodora favored Severus' cause. The emperor was weary of the turmoil caused by the prolonged theological discussions; Severus, he was told, was the master of the Non-Chalcedonian party, and only through his influence could unity only be regained. At this period, AD 535. Anthimus had been recently appointed to the Patriarch of Constantinople by Theodora's influence. He was a Non-Chalcedonian, who later joined heartily with Severus and his associates, Peter of Apamea and Zoaras, in their endeavours to get Non-Chalcedonianism recognized as the imperial faith. This introduction of Non-Chalcedonians threw the city into great disorder, and large numbers embraced their beliefs (Labbe, v. 124). Eventually, at the instance of Pope Agapetus I, who happened to be present in Constantinople on political business, the Non-Chalcedonians Anthimus and Timotheus were