The Early Church and Peter's Primacy

Letter LXXIX, from Pope Leo to Empress Pulcheria

Synopsis: Leo writes to Pulcheria Augusta to thank her for suppressing Nestorian and Eutychian impiety through her solicitude — calling her victory over Eutyches her second crown — and to report that the entire Roman Church greatly rejoices in all her faith’s works: in supporting his legation with pious affection, restoring the Catholic bishops unjustly expelled, and having Flavian’s relics returned with due honor; authorizing that bishops who repent of their assent to impious acts may receive peace through the shared care of his legates and Anatolius; noting that his brother Eusebius is with him and shares his communion and recommending that his church be defended; commending Julian of Cos and the Constantinopolitan clerics who adhered to Flavian to Pulcheria’s favor; and noting that he has instructed her piety through his own agency on what should be done or ordered in all matters.

Leo, bishop of the city of Rome, to Pulcheria Augusta.

Chapter I: Pulcheria’s Twofold Victory Over Nestorius and Eutyches

What we always presumed of your holy piety’s mind we have confirmed fully by experience: the Christian faith — though assailed by the diverse snares of the perverse — cannot be disturbed, with you present and prepared by the Lord for its defense. For God forsakes neither the mystery of His mercy nor the merit of your labor, through which you long ago expelled the subtle enemy of holy religion from the very heart of the Church: for the Nestorian impiety could not sustain its heresy, because it did not deceive the servant and disciple of truth — however much the poisonous lies of that loquacious man were infused into simpler minds. Through your solicitude, therefore, the devil’s schemes through Eutyches did not go unnoticed — and those who had chosen parts of this twofold impiety fell through the one virtue of the Catholic faith. This is your second victory over Eutyches’s error, most glorious Augusta. If he had possessed any sound heart, he could easily have avoided it — having been long struck down in its authors and prostrated before — lest he stir revived flames from buried ashes by passing into the company of those whose example he had followed. I therefore rejoice with gladness and render fitting vows to God for your clemency’s prosperity — who has already conferred on you through all the parts of the world where the Lord’s Gospel is preached a double palm and crown.

Chapter II: The Entire Roman Church Rejoices; The Reconciliation of Repentant Bishops Through Leo’s Legates and Anatolius

Let your clemency know that the entire Roman Church greatly rejoices in all your faith’s works: whether because you supported our legation with pious affection in all things, and restored the Catholic bishops who had been unjustly expelled from their churches by wrongful sentence, or because you caused the relics of the innocent and Catholic bishop Flavian of holy memory to be recalled with due honor to the Church over which he rightly presided. In all these your glory’s increase is multiplied — as you both venerate the saints for their merits and desire to remove thorns and thistles from the Lord’s field. We learned, through the report both of our own [legates] and of my brother and fellow bishop Anatolius — to whom you deign to bear witness — that some bishops among those who appeared to have given consent to impious acts now seek reconciliation and desire Catholic communion. To their desires we grant effect thus: those who correct themselves and condemn what was badly done by their own subscription may receive the grace of peace through the shared care of our legates whom we sent with the aforementioned bishop — since it is of Christian devotion both to restrain the obstinate with justice, and not to repel the converted with charity.

Chapter III: Eusebius Is in Leo’s Communion; Julian and the Flavian-Loyal Clerics Commended; Leo Has Instructed Pulcheria on All Matters

Since we know how much your clemency deigns to extend pious solicitude to Catholic bishops, we deemed it necessary to indicate that our brother and fellow bishop Eusebius dwells with us and shares our communion — whose Church, it is said, is being ravaged by one unjustly set up in his place. We also ask of your piety — which we do not doubt you will do of your own accord — to favor with due grace both our brother and fellow bishop Julian [of Cos] and the Constantinopolitan clerics who adhered to the holy memory of Flavian with faithful service.

We have instructed your piety through our own agency on what should be done or ordered in all matters.

Given on the Ides of April, in the consulship of Adelfius, most illustrious man.

Source/Reference

Notes / Historical Commentary

Letter LXXIX is addressed to Pulcheria on the same day as Letter LXXVIII to Marcian — April 13, 451. The paired dispatch is characteristic of Leo’s post-Latrocinium strategy: he always writes to both co-rulers simultaneously, understanding that Pulcheria and Marcian, while united, represent different relationships. Where LXXVIII to Marcian was a brief, gracious acknowledgment, LXXIX to Pulcheria is substantive and detailed — three chapters covering the theological history, the logistics of reconciliation, and specific pastoral commendations. Pulcheria is the confidante to whom Leo can entrust the fuller picture.

The structure of Chapter I deserves attention. Leo calls Pulcheria’s handling of Eutyches her “second victory” — the first being over Nestorius at Ephesus I in 431. He is constructing a narrative in which Pulcheria is the continuous agent of orthodox vindication across two major heretical crises, separated by twenty years. This is both a genuine tribute and a theological framing: Pulcheria’s rule has been defined by her defense of the faith, and the faith she has defended is the faith the Apostolic See holds and proclaims. The double palm and crown that God has conferred on her are the reward of this fidelity.

The reconciliation mechanism of Chapter II is ecclesiologically noteworthy. Leo authorizes his legates to work together with Anatolius — once the candidate of the Eutychian party, now a fellow bishop in communion after his subscription to the Tome — as joint agents for receiving repentant Eastern bishops back into Catholic fellowship. This joint operation of Roman legates and the Constantinople bishop is Leo’s preferred post-Chalcedon model for the Eastern church: not Rome acting unilaterally over Constantinople, and not Constantinople acting independently of Rome, but the two sees working in coordinated pastoral care for the churches under their shared oversight. The pattern is already visible here, six months before Chalcedon meets.

The mention of Eusebius of Dorylaeum is a reminder of the human cost of the Eutychian controversy. Eusebius had been the one who originally raised the alarm about Eutyches — bringing the formal accusation before Flavian’s Home Synod in 448 — and had been rewarded for his orthodoxy by being condemned himself at Ephesus II. He is now in Rome, in Leo’s communion, his see in the possession of someone “unjustly substituted” for him. Leo’s commendation of his case to Pulcheria is both pastoral and symbolic: the man whose courage had started the process of exposing Eutyches deserves to have his church restored.

The Early Church and Peter's Primacy