The Early Church and Peter's Primacy

Letter CXLVII, from Pope Leo to Julian, Bishop of Cos, and Aetius the Presbyter

Leo to Julian, bishop, and Aetius, presbyter, equally. Chapter I: Leo Rebukes Their Silence and Reports His Petition to the Emperor Although I received a letter from your charity some time ago, I am nonetheless surprised that you allowed to pass in silence that opportunity for a reply which our brother Anatolius necessarily made use […]

Letter CXLV, from Pope Leo to Emperor Leo

Leo, bishop of Rome, to Leo, ever Augustus. Chapter I: Leo Reports the Crisis in Alexandria and Urges That Chalcedon’s Definitions Not Be Reopened Having discharged the duties that belong to the congratulation of Your Imperial Majesty, I have added this page of necessary supplication as well, by which I seek the protection of your […]

Letter CXLIV, from Pope Leo to Julian, Bishop of Cos

Leo, pope, to Julian, Bishop of Cos. Julian’s Diligence Has Not Failed; the Eutychian Stirrings After Marcian’s Death Are Crushed; Rumors From Alexandria Require Vigilance Thanks be to God — that in all things pertaining to the state of the Church and the mystery of the faith, your brotherhood’s industry has not failed me in […]

Letter CXLIII, from Pope Leo to Anatolius, Bishop of Constantinople

Leo, bishop, to Anatolius, Bishop of Constantinople. Let Not the Remnants of Heretics Lurking in the City Be Nourished by Excessive Mildness and Revive I gladly receive the offices of charity from your dilection — and I exhort you to exercise them more frequently: since it pertains to the benefit of the whole Church when […]

Letter CXLII, from Pope Leo to Emperor Marcian

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 […]

Letter CXLI, from Pope Leo to Julian, Bishop of Cos

Leo, bishop, to Julian, Bishop of Cos. Chapter I: Carosus Corrected in Faith but Still in Discord With Anatolius; Joannes Sent to Egypt — Report the Outcomes Through our son Gerentium I have received the letters of your brotherhood — in which, with your customary devotion, you report what you rightly judge to pertain to […]

Letter CXL, from Pope Leo to Julian, Bishop of Cos

Leo, bishop, to Julian, Bishop of Cos. Dioscorus’s Death Makes the Correction of Error Easier; Leo Directs Julian to Use Marcian’s Favor and Keep Leo Informed About Alexandria I write back to acknowledge receipt of your dilection’s letters, brought to me by our son Gerentius — and to say how greatly it pleased me that […]

Letter CXXXIX, from Pope Leo to Juvenal, Bishop of Jerusalem

Leo, bishop of the city of Rome, to Juvenal, Bishop of Jerusalem. Chapter I: Leo Congratulates Juvenal’s Return but Names His Prior Tergiversation; the Holy Places Themselves Are a Rebuke to Eutychian Error Having received the letters of your dilection — brought to me by our sons Andrew the presbyter and Peter the deacon — […]

Letter CXXXVIII, from Pope Leo to the Bishops of Gaul and Spain

To his most beloved brothers, all the Catholic bishops established throughout Gaul and Spain, Leo, bishop of Rome. The Apostolic See’s Solicitude Provides the Uniform Paschal Date; Leo Directs Its Observance Throughout Gaul and Spain Since in carrying out all the rules of God’s precepts sacerdotal observance must be concordant, it is above all things […]

Letter CXXXVII, from Pope Leo to Emperor Marcian

Leo, bishop, to Marcian Augustus. Chapter I: Leo’s Paschal Solicitude Is Resolved Through Marcian’s Action; Leo’s Consent Given for the Sake of Unity My solicitude — which I had maintained regarding the Paschal observance — I rejoice to see resolved through the holy study of your clemency in response to my petition, since you commanded […]

Letter CXXXVI, from Pope Leo to Emperor Marcian

Leo, bishop, to Marcian Augustus. Chapter I: Leo Thanks Marcian; Reports That He Has Responded to Anatolius; Notes That Anatolius Attributes the Fault to Others The manifold grace of your clemency’s letters has been received by me with due reverence, and I gladly acknowledge how pious a care for the Christian religion — as is […]

Letter CXXXV, from Pope Leo to Bishop Anatolius

Leo, bishop, to Anatolius, Bishop of Constantinople. Chapter I: Anatolius’s Own Silence Separated Him From Leo’s Fellowship; Marcian Pressed the Matter to Its Fulfillment Had your charity held firm and unwavering in the care of our common grace, nothing would have arisen to cause you any anxiety. Reason did not permit me to spurn the […]

Letter CXXXIV, from Pope Leo to Emperor Marcian

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 […]

Letter CXXXIII, from Bishop Proterius of Alexandria to Pope Leo

Proterius, bishop of Alexandria, to the most holy and most blessed Pope Leo, bishop of Rome, most dilectissimus fellow priest and fellow bishop, greetings in the Lord. Chapter I: Proterius Reports That He Has Investigated Leo’s Paschal Inquiry With Diligence, Drawing on the Theophilean Laterculo The most pious and most faithful emperor Marcian has made […]

Letter CXXXII, from Bishop Anatolius of Constantinople to Pope Leo

Anatolius, bishop of Constantinople, to the most holy and blessed fellow bishop, Pope Leo, greetings in the Lord. Chapter I: Anatolius Reports Immediate Compliance With Leo’s Letters, and Expresses His Desire to Obey Leo’s Commands in All Things I had hoped that all the comfort and support required by a life filled with labors and […]

Letter CXXXI, from Pope Leo to Bishop Julian of Cos

Leo, bishop, to Julian, Bishop of Cos. Chapter I: Leo Commissions Julian to Translate the Tome Into Greek for Public Recitation at Alexandria Under the Imperial Seal Upon receiving the letters from our brother and fellow bishop Proterius, the bishop of Alexandria, I have no doubt that he is committed to Catholic doctrine and opposes […]

Letter CXXX, from Pope Leo to Emperor Marcian

Leo, bishop, to Marcian Augustus. Chapter I: Leo Thanks Marcian for His Testimony in Favor of Proterius and Congratulates Proterius’s Faith Profession The purity of the Christian faith, shining in your clemency, is demonstrated also in these letters brought by our brother and fellow bishop Nestorius — favoring with justice my brother Proterius, the prelate […]

Letter CXXIX, from Pope Leo to Bishop Proterius of Alexandria

Leo, bishop, to Proterius, Bishop of Alexandria. Chapter I: Alexandria’s Obligation to Send Letters to the Apostolic See Grounded in the Petrine-Markan Derivation of Its Faith Your letters — delivered by our brother and fellow bishop Nestorius with devoted care — have brought me great joy. It is fitting that the leader of the Church […]

Letter CXXVIII, from Pope Leo to Emperor Marcian

Leo, bishop, to Marcian Augustus. Leo Explains His Suspended Correspondence With Anatolius and Sets the Conditions for His Full Restoration to Communion If the bishop of Constantinople were as devoted to upholding ecclesiastical rules as your clemency is vigilant in safeguarding the integrity of the evangelical faith, everything would have returned to its proper state […]

Letter CXXVII, from Pope Leo to Bishop Julian of Cos

Leo, bishop of Rome, to Julian, Bishop of Cos. Chapter I: Leo Congratulates Julian on the Palestinian Restoration and Acknowledges Proterius of Alexandria We have often confirmed the faith of the most Christian prince with evident proofs — giving thanks to our God who deigned to grant such a ruler for human affairs, one who […]

The Early Church and Peter's Primacy