St Leo The Great

By Leon Bent –

November 10 is the Roman Catholic Church’s liturgical memorial of the fifth-century Pope Saint Leo I, known as “St. Leo the Great,” whose involvement in the 4th Ecumenical Council helped prevent the spread of error on Christ’s divine and human natures.

St. Leo intervened for the safety of the Church in the West as well, persuading Attila the Hun to turn back from Rome.

“As the nickname soon attributed to him by tradition suggests,” Pope Benedict XVI said in a 2008 General Audience on the saint, “he was truly one of the greatest pontiffs to have honoured the Roman See, and made a very important contribution to strengthening its authority and prestige.”

During this time, central authority was beginning to decline in the Western portion of the Roman Empire. At some point between 432 and 440, during the reign of Pope St. Celestine’s successor Pope Sixtus III, the Roman Emperor Valentinian III commissioned Leo to travel to the region of Gaul and settle a dispute between military and civil officials.

Pope Sixtus III died in 440 and, like his predecessor Celestine, was canonized as a saint. Leo, away on his diplomatic mission at the time of the Pope’s death, was chosen to be the next Bishop of Rome. Reigning for over two decades, he sought to preserve the unity of the Church in its profession of faith, and to ensure the safety of his people against frequent barbarian invasions.

As the fifth-century Christological controversy continued, the Pope urged the gathering of an Ecumenical Council to resolve the matter. At the Council of Chalcedon in 451, the Pope’s teaching was received as authoritative by the Eastern bishops, who proclaimed: “Peter has spoken through the mouth of Leo.”

Leo’s teaching confirmed that Christ’s eternal divine personhood and nature did not absorb or negate the human nature that he assumed in time through the Incarnation. Instead, “the proper character of both natures was maintained and came together in a single person.”

“So without leaving his Father’s glory behind, the Son of God comes down from his heavenly throne and enters the depths of our world,” the Pope taught. “Whilst remaining pre-existent, he begins to exist in time. The Lord of the universe veiled his measureless majesty and took on a servant’s form. The God who knew no suffering did not despise becoming a suffering man, and, deathless as he is, to be subject to the laws of death.”

In 452, one year after the Council of Chalcedon, Pope Leo led a delegation which successfully negotiated with the barbarian king Attila to prevent an invasion of Rome. When the Vandal leader Genseric occupied Rome in 455, the Pope confronted him, unarmed, and obtained a guarantee of safety for many of the city’s inhabitants and the churches to which they had fled.

A large collection of his writings and sermons survives, and can be read in translation today. With apparent strong conviction of the importance of the Bishop of Rome in the Church, and of the Church as the ongoing sign of Christ’s presence in the world, Leo the Great displayed endless dedication as Pope. Elected in 440, he worked tirelessly as “Peter’s successor,” guiding his fellow bishops as “equals in the episcopacy and infirmities.”

Pope St. Leo the Great died on November 10, 461. He was proclaimed a Doctor of the Church by Pope Benedict XIV in 1754.

Now, this gold nugget! Leo is often remembered for his writings and explanations of the faith, especially during the Council of Chalcedon in 451. His words were so powerful that the 600 bishops gathered there felt they had heard Saint Peter speaking through Leo. Pope Leo the Great died in 461.

And, this final flourish! Leo is known as one of the best administrative Popes of the ancient Church. Only two popes have earned the title Great—Gregory I and Leo I.


Leon Bent is an ex-Seminarian and studied the Liberal Arts and Humanities, and Philosophy, from St. Pius X College, Mumbai. He holds Masters Degree in English Literature and Aesthetics. He has published three Books and have 20 on the anvil. He has two extensively “Researched” Volumes to his name: Hail Full of Grace and Matrimony: The Thousand Faces of Love. He won The Examiner, Silver Pen Award, 2000 for writing on Social Issues, the clincher being a Researched Article on Gypsies in India, published in an issue of the (worldwide circulation) Vidyajyoti Journal of Theological Reflection, New Delhi. On April, 28, 2018, Leon received the Cardinal Ivan Dias Award for a research paper in Mariology.