Pope Peter III of Alexandria

Pope Peter III of Alexandria

Pope Peter III of Alexandria (died 490), also known as Mongus (from Greek "moggos", "stammerer"), was Coptic Pope from 477 until his death and after 482 also recognized as Patriarch of Alexandria by the Eastern Orthodox Church.


After the Council of Chalcedon, Peter Mongus was an ardent adherent of Miaphysitism and deacon of Timothy Aelurus. After Timothy expelled the Chalcedonian Patriarch Proterius I in 457, Mongus took part the persecution of the Chalcedonians.

When Timothy Aelurus, who had been expelled in 460 and returned in 475, died in 477, his followers elected Mongus to succeed him. However, the Byzantine Emperor Zeno brought Timothy Salophakiolos, a Chalcedonian who had supplanted Aelurus before in 460, back to Alexandria and sentenced Mongus to death.

Mongus escaped by flight and remained in hiding until 482. In the previous year, John Talaia had succeeded Timothy Salophakiolos as Patriarch. However, as Talaia refused to sign Emperor Zeno's Henoticon (which glossed over the Council of Chalcedon), the Emperor expelled him and recognized Mongus as the legitimate Patriarch on the condition that he would sign the Henoticon. Mongus complied and after taking possession of the see, he signed the controversial document and sent notice of his succession to his fellow Patriarchs. Acacius of Contantinople entered him into his diptychs as Patriarch of Alexandria.

Talaia had meanwhile fled to Rome, where he was welcomed by Antipope Felix II, who had been imposed by Emperor Constantius II. This Felix, or his successor Felix III, refused to recognize Mongus and defended Talaia's rights in two letters to Acacius. As Acacius maintained the Henoticon and communion with Mongus, the Pope excommunicated the Patriarchs in 484. This Acacian schism lasted until 519.

Mongus became the chief champion of all miaphysites. He held a synod to condemn Chalcedon, and desecrated the tombs of his two Chalcedonian predecessors Proterios and Timothy Salophakiolos. When Acacius died in 489, Mongus encouraged his successor Fravitta to maintain the schism with Rome. Fravitta's successor Euphemius sought to heal the schism by excommunicating Mongus, who however died soon afterwards in 490.


He is said to have written many books, of which however nothing remains. A pretended correspondence between him and Acacius (in Coptic) is proved to be spurious by Amelineau in the "Memoires publiés par les membres de la mission archéologique française au Caire", IV (Paris, 1888), 196-228.

Sources and references

* "Peter Mongo" in: "The Oxford Dictionary of the Christian Church.", F. L. Cross and E. A. Livingstone (ed.), London: Oxford University Press, 1974, p. 1074.


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