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Portrait of St. Irenaeus of Lyon
A portrait of St. Irenaeus of Lyon

St. Irenaeus of Lyon

c. 130 – c. 202
Feast
June 28 · III c.
Patron of
Theologians · Apologists · Lyon · Christian unity
Order
Bishop / Doctor of the Church / Apostolic Father

Greek-born bishop and theologian (c. 130-c. 202), as a young man heard St. Polycarp at Smyrna who himself had heard John; bishop of Lugdunum (Lyon) in Gaul from c. 178. His "Adversus Haereses" is the chief source for early Christian Gnosticism and a foundational defense of the apostolic tradition and the Rule of Faith. Doctor of the Church ("Doctor of Unity") by Francis in 2022.

Life & Times

Born: c. 130 · Died: c. 202 · From: Smyrna / Lyon, France.

Patronage

St. Irenaeus of Lyon is invoked as the patron of theologians, apologists, lyon, christian unity. Those in these callings or circumstances often turn to this saint in prayer.

“The glory of God is a living man, and the life of man is the vision of God.”
— Against Heresies, IV.20.7.

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About Catholic Saints

Catholic saints, including St. Irenaeus of Lyon, are Christians whom the Catholic Church has formally recognized as having lived lifes of heroic holiness and who now dwell with God in heaven, offering an example of faith for those still on their earthly journey. Catholics don't worship saints, but ask them to pray to God with us and for us — much as one might ask a trusted friend to pray for them — trusting that those closest to God can join their voices to ours before Him. Discover more saints in the Catholic Shop Saints section.