The Early Church and Peter's Primacy

Letter LXXXIX, from Pope Leo to Emperor Marcian

Synopsis: Leo writes to Emperor Marcian to report that, though he had believed Marcian could grant postponement of the episcopal synod to a more opportune time when bishops from all provinces could gather for a truly universal council, he did not wish to seem to oppose Marcian’s devout decision to proceed now — sending therefore his brother Paschasinus called from a safer province to fulfill his presence’s role, joined by Bonifacius the presbyter, those previously sent, and Julian of Cos added to their company — trusting that all matters of complaint and disturbance may be recalled to the unity of peace and faith, with all dissension suppressed and no trace of Nestorian or Eutychian impiety left in any bishop’s heart, and that those entrusted will labor without hatred or favor so that with only heretical impiety’s destruction truth and charity may reign in all God’s churches.

Leo, bishop, to Marcian, ever Augustus.

Leo Sends Legates to Act on His Behalf at a General Council; Aiming to Restore All Matters to the Unity of Faith and Peace

We believed your clemency could grant our desire to postpone the episcopal synod to a more opportune time — considering the present necessity, so that bishops from all provinces might be called to a truly universal council. But since you, out of love for the Catholic faith, wished the assembly to occur now, I did not wish to seem to oppose your devout decision. Thus I sent my brother and fellow bishop Paschasinus — called from a safer province to fulfill the role of my presence — joined by my brother and fellow presbyter Bonifacius and those previously sent, and adding our brother Julian, bishop of Cos, to their company.

We believe they will handle all matters with such moderation — with the Lord’s aid — that whatever caused complaint or disturbance may be recalled to the unity of peace and faith, with all dissension suppressed and no trace of Nestorian or Eutychian impiety left in any bishop’s heart, most glorious emperor. For the Catholic faith — which, guided by God’s Spirit through the holy Fathers, we learned from the blessed Apostles and teach — permits neither error to creep in. If any diseases or wounds can be healed by sincere correction, we desire their restoration to true health, which will be certain and harm no one’s simplicity henceforward if it seeks no excuses to obscure itself — as true confession alone obtains the abolition of sin.

Since some brothers, as we say not without sorrow, could not hold Catholic constancy against the storms of falsehood, my aforementioned brother and fellow bishop will preside over the synod in my stead. I am certain that without hatred or favor those entrusted will labor there, so that with only heretical impiety’s destruction, truth and charity may reign in all God’s churches.

Given on the eighth day before the Kalends of July, in the consulship of Adelfius, most illustrious man.

Source/Reference

Notes / Historical Commentary

Letter LXXXIX is Leo’s formal notification to Marcian of the complete Chalcedon legation — Paschasinus as president, Bonifacius as his companion, the previously dispatched legates, and now Julian of Cos added to the company. Dispatched June 24, 451, alongside Letter LXXXVIII to Paschasinus, it closes the pre-Chalcedon coordination that Leo had been conducting since November 450.

The addition of Julian of Cos to the legation deserves attention. Julian had been Leo’s eyes and ears in the East throughout the entire crisis — present at Ephesus II, correspondent throughout the post-Latrocinium period, recipient of Leo’s most personal letters (LXXXI, LXXXVI). His formal inclusion in the Chalcedon delegation brings the institutional weight of the Apostolic See’s official representation together with the personal knowledge and relational credibility that two years of crisis correspondence had built. Paschasinus provides the presidential authority; Julian provides the Eastern expertise. The delegation is not merely a formal deputation; it is a carefully assembled team for the most consequential council of the century.

The governing formula — “my brother and fellow bishop will preside over the synod in my stead” — is the council’s jurisdictional baseline stated plainly. Leo is not attending Chalcedon. He is presiding at Chalcedon through Paschasinus. The distinction matters: Leo is not absent from Chalcedon in any meaningful sense. The Apostolic See is present, in its legate, exercising its authority through the person who acts in the Roman bishop’s place. When Paschasinus refuses to allow the council to proceed until Dioscorus is removed — when the bishops declare “Peter has spoken through Leo” after the Tome is read — these are not the acts of Leo’s representative. They are Leo’s acts, performed through the person who stands in his stead.

The Early Church and Peter's Primacy