The Early Church and Peter's Primacy

Letter CXLII, from Pope Leo to Emperor Marcian

Synopsis: Leo thanks Marcian for his priestly solicitude in reminding him of the Paschal date and confirms that he has already communicated the day declared by the Alexandrian bishop’s instruction to all the priests of the Western parts — setting aside all scruples for the sake of unity and peace; and rejoices that Marcian has, at Julian’s report, commanded Carosus and Dorotheos to be removed from their monasteries to places where they cannot harm the faithful.

Leo, bishop, to Marcian Augustus.

Chapter I: Leo Has Already Communicated the Alexandrian Paschal Date to All the Western Priests; Thanks Marcian for His Priestly Solicitude

How great is the love of God in your clemency — for serving whom you reign, and by reigning serve — the dignity of your most devout words itself shows; and this inflames in me an affection of the whole heart, so that I may not cease to offer vows and supplications for the safety of your glory: since greatly is it provided by God for the holy Church and the Roman republic through your safety. On this same occasion, receiving with reverence the heights of your piety, I discharge the due offices of greeting — and render, though insufficient, my thanks: that your piety has reminded me with priestly solicitude of the most sacred day of Pascha.

Although I have long since professed my acquiescence in this rule of observance, I have already made known to all the priests of the Western parts the same day of the venerable feast that the instruction of the Alexandrian bishop declared — namely that in the present year the Pascha be celebrated on the eighth day before the Kalends of May — setting aside all scruples from zeal for unity and peace.

Chapter II: Leo Rejoices That Carosus and Dorotheos Have Been Removed From Their Monasteries at Julian’s Report

As for Carosus and Dorotheos — who with heretical wickedness defended errors condemned to the destruction of many — I rejoice that your piety, as my venerator and brother Julian the bishop indicated to me, has most wholesomely commanded that they be removed from their monasteries and required to dwell with those who cannot harm them: which I hope will be a remedy for many whom you have freed from perverse teachers — with the merits of your glory growing in all things in the love of the Christian faith, for which the just and merciful God grants that just as divine things are dear to you, so earthly things may be subject to you.

Dated the third day before the Ides of March, in the consulship of the Augustus Valentinianus for the eighth time.

Source/Reference

Notes / Historical Commentary

Letter CXLII is a short companion letter to CXLI — written two days later to Marcian rather than Julian. Its two chapters address the same two clusters that appear throughout the post-Chalcedon correspondence: the Paschal coordination and the suppression of the Eutychian remnant. Both confirm the administrative pattern established over the previous three years.

Chapter I’s confirmation of the Paschal distribution chain — Alexandria declares, Leo communicates to all Western priests — is the clearest single statement in the corpus of how the chain operates on the Western end. Leo does not ask Marcian whether this is correct; he tells Marcian what he has already done. The Western priests have already received the date from Rome; Marcian is being informed after the fact. The Apostolic See’s coordinating role is not contingent on imperial approval; it has already been exercised.

Chapter II’s thanks for the Carosus/Dorotheos removal closes a loop that had run from Letter CXXXVI (May 454, when Leo asked Marcian to suppress Carosus) through Letter CXLI (March 11, 455, when Julian reported the situation) to the present letter (March 13, 455, when Leo thanks Marcian for the execution). The full arc takes ten months; the mechanism is consistent throughout: Leo identifies the problem, Julian monitors it, Marcian acts, Leo acknowledges. The Apostolic See’s pastoral oversight of Constantinople’s internal ecclesiastical life operates through this three-node system without interruption.

The Early Church and Peter's Primacy