Dates: patriarch of Alexandria 412–444 (b. c. 376, d. 27 June 444) · Wikipedia
Summary: Cyril was the ablest theologian and the most formidable ecclesiastical politician of his age,
and the architect of the doctrine of the hypostatic union. This page tells the quarrel from his side: the nephew and
heir of the Theophilus who had destroyed John
Chrysostom, he took up the case against Nestorius in 429, secured Rome's mandate, hurled
the Twelve Anathemas, convened the Council of Ephesus (431) before the Antiochene bishops could arrive and deposed
Nestorius in a day, out-lasted his own counter-deposition, spent his treasury at the imperial court to make the
verdict stick, and two years later sealed the peace with Antioch that abandoned his rival for good. He won on every
front — and his theology, once purged of one ambiguous phrase, became the mind of the whole later Church.
Cyril succeeded his uncle Theophilus as patriarch of Alexandria in 412, inheriting both the most powerful see in the East and its habits of rule. His early years were marked by the same combativeness — the expulsion of the Jews from Alexandria, the struggle with the prefect Orestes, and the murder of the philosopher Hypatia by a Christian mob in 415, which his enemies laid at his door. He was, from the first, a man who fought to win.1
When reports reached Alexandria that the new bishop of Constantinople was preaching against the title Theotokos, Cyril moved first through his annual paschal letter and a private warning, then in the measured, decisive Second Letter to Nestorius — the letter that would be read at Ephesus as the touchstone of orthodoxy. Against Nestorius's language of two who are merely joined, he set the hypostatic union:
Rather do we claim that the Word in an unspeakable, inconceivable manner united to himself hypostatically flesh enlivened by a rational soul, and so became man and was called son of man, not by God's will alone or good pleasure, nor by the assumption of a person alone.
— Second Letter to Nestorius (Ep. 4), source. The theological substance of this letter, and of his whole doctrine of the person of Christ, is set out on his christology page; here it is the opening move of a campaign.2
Cyril did not wait on Constantinople. He sent Pope Celestine a Latin dossier of Nestorius's own sermons, and when the Roman synod of August 430 condemned Nestorius, it committed the execution of the sentence to Cyril himself — making the prosecutor the judge's agent. An Alexandrian synod then issued his Third Letter, closing with twelve anathemas that turned the doctrine into pass-or-fail tests. The first struck at the title; the twelfth confessed a suffering God:
If any one confess not that the Word of God suffered in the Flesh and hath been crucified in the Flesh and tasted death in the Flesh… be he anathema.
— Third Letter to Nestorius, the Twelve Anathemas, source. The anathemas were his sharpest weapon and his most contested one: the Antiochenes read the twelfth as close to Apollinarian passibility, and the phrase would trouble the Church long after Nestorius was gone. Cyril's own balance — the natures “unconfused” within the one Christ — is weighed on his christology page.3
At Ephesus, Cyril did with Nestorius exactly what his uncle had done with the accusers of Chrysostom: he took the bench. Rather than wait for John of Antioch and the Syrian bishops — Nestorius's natural defenders, still on the road — he opened the council after a fortnight, over the protest of the imperial commissioner and some sixty-eight bishops. His own words survive because Nestorius wrote them down to accuse him:
This great and holy Council has been patient enough, waiting for the coming of the godly bishops, who are expected to come.
— Cyril at the opening, quoted in Nestorius, Bazaar of Heracleides, source. Nestorius, summoned three times and three times refusing to appear before his prosecutor, was deposed in a single day's session by the Cyrilline majority, and the people of Ephesus escorted the bishops home by torchlight.4
The victory was not clean. Five days later John of Antioch reached Ephesus, and under the protection of the count Candidian held a counter-council that deposed Cyril and Memnon of Ephesus in turn; the emperor Theodosius at first confirmed both depositions, and Cyril was placed under guard. He got free the way the whole affair was decided — by leaving without leave and reaching Alexandria before any authority could stop him. Nestorius, in exile, described it bitterly:
Cyril… who was being guarded with all caution hid himself from them that were guarding him in Ephesus… and set out from Ephesus and gained his [own] city without being hindered by any one.
— Nestorius, Bazaar of Heracleides, source. He was received in Alexandria as a conqueror.5
What broke the deadlock at court was not argument but Alexandrian gold. A memorandum from Cyril's own chancery itemizes the gifts distributed to the officials and eunuchs around the emperor — carpets, ivory chairs and stools, ostriches, and, to a single official, “fifty pounds of gold… in order that he would help us in the cause.” By one reckoning the disbursements ran past a thousand pounds of gold. That the list is genuine is not in dispute, because it is his own:
…four ivory chairs, two ivory stools… two ostriches; and in order that he would help us in the cause about those matters which were written to him: fifty pounds of gold.
— Cyril, Letter 96 (to Paul the Prefect), trans. R. Pearse from ACO 1.4, source. It is the plainest evidence that the Ephesus verdict was made to stick at the palace, not in synod.6
Two years after the council Cyril made peace with Antioch. Through the imperial envoy Aristolaus he and John of Antioch agreed the Formula of Reunion — a confession that affirmed Theotokos but used the “two natures” language he had resisted in the heat of the fight, and abandoned Nestorius. He announced it in a letter whose opening became famous: “Let the heavens rejoice and the earth be glad, for the middle wall of partition is broken down.” It was the bridge from his own theology to Chalcedon. Cyril held Alexandria until his death on 27 June 444, honoured as the doctor of the Incarnation.7
Cyril's accession in 412 as successor to his uncle Theophilus, the conflict with the prefect Orestes, and the death of Hypatia in 415: Cyril of Alexandria, Wikipedia. On the inherited method of the Alexandrian see, see Theophilus's page. ↩
Cyril, Second Letter to Nestorius (Ep. 4) — the hypostatic union. Read aloud and approved at Ephesus as consonant with Nicaea; his fuller doctrine is on the christology timeline. ↩
Cyril, Third Letter to Nestorius, the Twelve Anathemas (trans. E. B. Pusey) — the twelfth (“the Word of God suffered in the Flesh…”) and the first (on Theotokos); also within the Ephesus acts (NPNF² vol. 14). The Roman synod of August 430 and its commission to Cyril: P. Schaff, History of the Christian Church, vol. 3, §138. ↩
Cyril's opening of the council (“This great and holy Council has been patient enough…”), preserved in Nestorius, Bazaar of Heracleides, Book 2, part 1; the deposition decree at the Ephesus acts (NPNF² vol. 14); the date and Nestorius's refusals at Socrates, Church History VII.34. The 22 June opening: Council of Ephesus, Wikipedia. ↩
John of Antioch's counter-council and the deposition of Cyril and Memnon under Candidian: Evagrius, Church History I.5 and Schaff, vol. 3, §138. Cyril's escape from custody (“hid himself from them that were guarding him… and gained his [own] city”): Nestorius, Bazaar of Heracleides, Book 2, part 1. ↩
Cyril's Letter 96 (to Paul the Prefect), the itemized gift-memorandum, critical text in Acta Conciliorum Oecumenicorum 1.4, pp. 224–225 (CPG 5396); “fifty pounds of gold… in order that he would help us in the cause” translated by R. Pearse. Foundational study: P. Batiffol, “Les présents de saint Cyrille à la cour de Constantinople” (1911); the totals are re-computed in V. Menze, “Blessings, Bribes, and Bishops.” Nestorius's charge (“the gold of iniquity was exacted”): Bazaar of Heracleides, Book 2, part 1. ↩
Cyril, Letter 39 (to John of Antioch), the Formula of Reunion (NPNF² vol. 14) — “a union of two natures… one Christ, one Son, one Lord”; the “middle wall of partition” opening is quoted in Evagrius, Church History I.6. Cyril's death on 27 June 444: Cyril of Alexandria, Wikipedia. ↩