The Early Church and Peter's Primacy

Letter CXXXIV, from Pope Leo to Emperor Marcian

Synopsis: Leo praises Marcian’s steadfast zeal for the faith, promises that if the bishop of Constantinople faithfully carries out what he has pledged he will find in Leo a disposition of sincere grace — but that if he persists in what displeases God and Marcian’s piety, Leo will use greater freedom against him; asks Marcian to transfer Eutyches to a more remote location since he is still spreading poison from exile and proposes that Julian of Cos oversee his former monastery; thanks Marcian for transmitting the Paschal inquiry to Alexandria; and asks Marcian to protect the Catholics at Constantinople from the bishop’s power to harm them.

Leo, bishop, to Marcian Augustus.

Chapter I: Anatolius Will Find in Leo a Disposition of Sincere Grace If He Fulfills His Promises — But Greater Freedom of Opposition If He Persists

How greatly the most holy study of your piety around the Christian religion perseveres and grows in glorious advances — and how this faith of your clemency consoles and strengthens not only me but all the Lord’s priests — is made known by many and frequent proofs, while in the most Christian prince the priestly affection is felt and experienced. If the priests of the Eastern parts study to imitate this, neither peace nor the Christian faith will suffer any scandals. Since the bishop of Constantinople is being instructed toward the full advancement of piety by the example of your present clemency — if he faithfully yields to your exhortations, he finds in me a disposition of sincere grace: only let him fulfill in deed what he promises in words. But if he persists with stubborn intention in what is displeasing to God and to your piety — with your reverence’s mildness preserved — I will use, with all and for all, and with your concurrence as well, a greater freedom against the one who is proud: whom I would rather embrace with fraternal charity for holy conduct — as must often be said — most glorious emperor.

Chapter II: Eutyches Is Still Spreading His Poison From Exile; Leo Asks for His Transfer to a More Remote Location

Since you readily receive my suggestions for the tranquility of the Catholic faith, let it be known to you — as was signified to me by the report of our brother and fellow bishop Julian — that the impious Eutyches, though justly exiled for his own merits, is in that very place of his condemnation pouring out more desperately the many poisons of blasphemies against Catholic integrity; and what the whole world shuddered at and condemned, he is vomiting forth with greater impudence, so as to be able to deceive the innocent. I therefore judge it entirely reasonable that your clemency command him to be transferred to more distant and more remote places. As for his monastery established at Constantinople — in which the monk inhabitants are to be more often and more fully strengthened by evangelical and apostolic doctrine — it will be beneficial, as I judge, if the one placed in charge of that monastery is not said to withdraw from the company of your venerator Julian the bishop, whom I have established at the watch there on account of the faith: so that by his assiduous visitation the progress of God’s servants dwelling there may be increased.

Chapter III: Leo Thanks Marcian for the Paschal Inquiry and Asks Him to Protect the Catholics at Constantinople From the Bishop’s Power to Harm Them

I rejoice that my petition about the Paschal feast has been so received by your piety — that you sent immediately an agent to Alexandria to admonish about the error which the constitution of Theophilus of holy memory appears to introduce. Concerning this matter, as you deign to write, let me know whatever shall have come to your piety’s notice — so that concerning the observance which may not be diverse, the universal Church may recognize what is above all to be held. I beseech moreover, as befits your well-known clemency, that you guard above all against all snares those whom you know are pleasing to me and to your mildness on account of love of the faith — so that the bishop of Constantinople may not have the power to harm them.

Dated the seventeenth day before the Kalends of May, in the consulship of the most illustrious Aetius and Studius.

Source/Reference

Notes / Historical Commentary

Letter CXXXIV is a three-topic letter to Marcian covering the Anatolius situation, Eutyches in exile, and the Paschal inquiry. Its most significant element — easily missed — is the closing petition of Chapter III, which asks Marcian to prevent the bishop of Constantinople from having the power to harm those who are pleasing to Leo and to Marcian’s own mildness. This is Leo maintaining imperial protective oversight over the Catholic faithful at Constantinople even after Anatolius’s formal compliance. The compliance reported in CXXXII has been acknowledged; it has not ended Leo’s concern about Anatolius’s capacity to harm those who stood against him.

Chapter I’s conditional structure is precise and worth reading carefully. Leo does not say “I am pleased with Anatolius” or “I have restored communion with Anatolius.” He says Anatolius finds in Leo a disposition of sincere grace — if he fulfills in deed what he promises in words. The grace is offered; it has not been given. The condition remains open. This is consistent with the pattern from CXXVIII onward: Leo sets conditions, Anatolius begins to satisfy them, Leo acknowledges the progress while keeping the conditional in force until full satisfaction is verified.

Chapter II’s request to transfer Eutyches to a more remote location — six years after his condemnation at Constantinople (448) and three years after Chalcedon (451) — confirms that the canonical and imperial machinery had not in fact silenced the heresiarch. His monastery at Constantinople, which Leo proposes to place under Julian of Cos’s oversight, represents a continuing institutional presence of the Eutychian network at the imperial capital. Leo addresses both the man and the institution in a single paragraph, characteristically combining the pastoral and the administrative.

The Early Church and Peter's Primacy