Daily Saint

Pope St. Leo the Great

c. 391–November 10, 461


Patron Saint of popes, doctrinal teaching, pastoral leadership, those who seek wisdom and courage in Church leadership, and those dealing with threats to peace

Pope St. Leo the Great

Pope St. Leo the Great led the Church as pope in the mid-fifth century. He was one of the most influential leaders of the early Church. He strengthened the clergy, cared for the poor, and guided the Church through various crises.

Born in Tuscany, Italy, there is little information available about his early life; however, his influence in theological discussions suggests that he grew up in an environment of deep theological thought. He served as a deacon in Rome, and his intelligence, holiness, and administrative skill quickly marked him as a leader.

Pope St. Leo was elected pope in 440, during a time of great political and religious unrest. The Western Roman Empire was under threat from invading barbarian tribes, including the Vandals and Huns. Leo became a pivotal figure as these threats revealed his courage and diplomacy. Risking his life, Pope St. Leo met Attila the Hun in 452 and persuaded him to spare Rome from destruction.

Pope St. Leo’s writings on Church doctrine clarified the primacy of the pope and the authority of the Church. The most well-known document, the Tome of Leo, was pivotal in affirming the doctrine of the two natures in the one person of Christ at the Council of Chalcedon.

St. Leo was canonized as a saint shortly after his death on November 10, 461, and was declared a Doctor of the Church in 1754. His legacy includes his theological insight, courageous leadership, and unwavering defense of the Church’s teaching.

He is venerated as the patron saint of popes and learned clergy, Church leaders seeking wisdom and courage, and those facing threats to peace.

Discover More About Pope St. Leo the Great


Why is St. Leo called “the Great”?

Pope St. Leo earned this title through his extraordinary leadership, theological knowledge, and ability to guide the Church during times of crisis. He was a significant contributor to the centralization of spiritual authority within the Church and in reaffirming the authority of the papacy.

Pope St. Leo reformed the clergy, strengthened liturgical practices, and wrote extensively to encourage the faithful. He was known for his devotion to the poor and his tireless efforts to maintain unity in the Church during a period of division and doctrinal confusion. 

What was the significance of his meeting with Attila the Hun?

In 452, Leo met Attila the Hun outside of Rome and persuaded him to turn back his army, sparing the city from destruction. This act of courage and diplomacy demonstrated the moral and spiritual authority of the pope. In addition, it avoided bloodshed in Rome and Italy and established Pope St. Leo as a peacemaker.

What is a Doctor of the Church, and why was Pope St. Leo named one?

The Church gives the title of Doctor of the Church to canonized saints who are revered for the exceptional value of their writings, preaching, and the sanctity of their lives. As of 2025, the Church has named 38 Doctors of the Church.

Pope Benedict XIV declared St. Leo a Doctor of the Church in 1754, recognizing his significant contributions to theology and pastoral leadership. His diplomatic skills and doctrinal writings had a lasting impact on both the Church and society.

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Pope St. Leo The Great

He saved Rome from destruction, promoted unity within the Church, deepened our understanding of our Lord, and fostered a better understanding of the role and place of the Pope. Discover more about this remarkable figure and Doctor of the Church.

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EWTN Newsreal: Pope Leo the Great in 452 AD

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