Pope Dioscorus I of Alexandria
|Saint Dioscorus the Great
Ⲡⲁⲡⲁ Ⲁⲃⲃⲁ Ⲇⲓⲟⲥⲕⲟⲣⲟⲥ ⲁ̅
|The Champion of Orthodoxy|
Gangra Island, Asia Minor
|Honored in||Oriental Orthodox Churches (Non-Chalcedonian Miaphysite)|
|Major shrine||St Mark Cathedral (Cairo, Egypt)|
|Feast||17 September (Thout 7 in the Coptic Calendar)|
|Controversy||Nestorianism, Eutychianism (Monophysitism), support of Eutyches, rejection of ecumenical council of Chalcedon|
Pope Dioscorus I of Alexandria (Coptic: Ⲡⲁⲡⲁ Ⲁⲃⲃⲁ Ⲇⲓⲟⲥⲕⲟⲣⲟⲥ ⲡⲓⲙⲁϩ ⲟⲩⲁⲓ) was Patriarch of Alexandria from 444. He was deposed by the Council of Chalcedon in 451 but was recognized as Patriarch by the Coptic Church until his death. He died in Asia Minor, on 17 September 454. He is venerated as a saint by the Coptic and other Oriental Orthodox churches.
Early life 
Pope Dioscorus served as the dean of the Catechetical School of Alexandria, and was the personal secretary of Cyril of Alexandria, whom he accompanied to the Third Ecumenical Council at Ephesus. He eventually rose to the position of archdeacon.
Opposition to Nestorius 
In his struggle against Nestorius, Cyril explained the union between the divine and human natures of Christ as "inward and real without any division, change, or confusion." He rejected the Antiochene theory of "indwelling,", or "conjunction" or "close participation," as insufficient. Thus the Alexandrian formula adopted by Cyril and Dioscorus was "one nature of God the Word Incarnate," which translates into Greek as mia physis tou theou logou sesarkomene, by which Cyril meant "one nature"—that Christ is at once God and man. On the other hand, the Antiochene formula was "two natures after the union," or "in two natures," which translates to dyo physis. This formula explained Christ as existing in two natures, God and man.
Nestorius was condemned and deposed by the First Council of Ephesus, which approved of the Second Epistle of Cyril to Nestorius.
Support for Eutyches 
Dioscorus supported Eutyches, an archmandrite in Constantinople who defended the formula of "one nature" against the formula of dyo physis. Eutyches argued that the divinity absorbed the humanity of Christ. A synod chaired by Archbishop Flavian of Constantinople in 448 condemned and exiled Eutyches. Eutyches appealed against this decision, labeling Flavian a Nestorian, and received the support of Dioscorus, while Pope Leo I, in his famous Tome confirmed Flavian's theological position but also requested that Eutyches should be readmitted if he repented.
In 449, Emperor Theodosius II convened the Second Council of Ephesus. In remembrance of Cyril's role during the council of 431, the emperor asked Dioscorus to preside over the meetings. The council subsequently decided to reinstate Eutyches and to depose Flavian, as well as Eusebius of Dorylaeum, Theoderet of Cyrrus, Ibas of Edessa, and Domnus II of Antioch. Leo's legates protested but were ignored. Pope Leo himself called the council a "robber synod" and declared its decisions void.
Emperor Theodosius supported the council's decisions until he died on 28 July 450. His sister Pulcheria returned to power and made the officer Marcian her consort and emperor. She consulted with Pope Leo on convoking a new council, gathering signatures for his Tome to be introduced as the basic paper for the new council, but also insisted, against Leo's wishes that the council should be held not in Italy but in the East. Meanwhile, the new imperial couple brought Flavian's remains back to Constantinople and exiled Eutyches to Syria.
Council of Chalcedon 
The Council, assembled at Chalcedon, not only dealt with the Christogical views of Eutyches but also with Dioscorus' views and earlier behaviour. On the insistence of the Roman legates, Dioscorus was denied a place among the council fathers.
When Dioscorus argued for the adoption of the formula "one incarnate nature of God the Word" and several bishops equated this with the views of Eutyches, Dioscuros tried to clarify his point that "We do not speak of confusion, neither of division, nor of change." Dioscorus stated that he did not accept "two natures after the union" but he had no objection to "from two natures after the union."
Following Dioscorus's deposition and exile, an Alexandrian priest named Proterius was appointed Patriarch in his stead, with the approval of the emperor. Though no one opposed Proterius out of fear of Imperial reprisal, many still secretly adhered to Dioscorus, considering him the legitimate Patriarch.[weasel words]
Dioscorus died in exile in 454. When the news reached Egypt, his supporters assembled and elected Timothy, a disciple of his, to be the new Patriarch. Timothy immediately went into hiding, but was recognized among the Coptic inhabitants of the countryside, creating the split between the Coptic and the Melchite (i.e. Imperial) Church.
Oriental Orthodox Churches remain in disagreement with Eastern Orthodox and Catholic churches regarding Dioscorus's character and positions. He is considered a saint by the Coptic, Syriac, and other Oriental Orthodox churches, while Eastern Orthodox and Catholic Churches have frequently deemed him a heretic.
Certain modern theologians suggest that both Leo and Dioscorus were orthodox in their agreement with Saint Cyrill's Twelve Chapters, even though both have been (and still are) considered heretical by some. Some commentators like Anatolius and John S. Romanides argue that Dioscorus was not deposed for heresy but for "grave administrative errors" at Ephesus II, among which they mention his restoration of Eutyches, his attack on Flavian, and afterwards, his excommunication of Pope Leo I. Defenders of Dioscorus argue that Eutyches was orthodox at the time of his restoration and only later lapsed into heresy, that Flavian was a Nestorian, and that Pope Leo had supported Nestorianism.
Another controversial aspect of Dioscorus's legacy is the accusation, frequently levelled by Chalcedonian churches, that the Oriental Orthodox Churches accept Eutychianism. The latter deny this charge, arguing that they reject both the Monophysitism of Eutyches, whom they consider a heretic, as well as Dyophysitism espoused by the Council of Chalcedon, which they equate with Nestorianism, for a doctrine they term miaphysitism, or that in Jesus Christ, divinity and humanity exist as "one divinized nature" (physis), as opposed to the orthodox Chalcedonian teaching of a divine and a human nature united in the one person (hypostasis) of Jesus Christ, fully God and fully man, a doctrine called the "hypostatic union".
In recent times, Oriental Orthodox churches have engaged in ecumenical dialog with Catholic and Eastern Orthodox churches on the issues of Dioscorus's day. In May 1973 Pope Shenouda III of Alexandria visited Pope Paul VI in Rome and declared a common faith in the nature of Christ, the issue which caused the schism of the church in the Council of Chalcedon. A similar declaration was reached between the Oriental and Eastern Orthodox churches in 1990 in Geneva, in which both agreed in condemnation of the Nestorian and Eutychian heresies and in rejection of interpretations of ecumenical councils which do not fully agree with the Horos of the Third Ecumenical Council and the letter (433) of Cyril of Alexandria to John of Antioch. They also agreed to lift the anathemas and condemnations of the past. In the summer of 2001, the Coptic Orthodox and Greek Orthodox Patriarchates of Alexandria agreed to mutually recognize baptisms performed in each other's churches.
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Pope Cyril I
|Pope of Alexandria
Pope Timothy II
|Patriarch of Alexandria (before schism)
Patriarch Proterius I