Skip to content
Catholic Online Logo

Short Cuts

Image of St. Irenaeus


Feastday: June 28

Death: 202

The writings of St. Irenaeus entitle him to a high place among the fathers of the Church, for they not only laid the foundations of Christian theology but, by exposing and refuting the errors of the gnostics, they delivered the Catholic Faith from the real danger of the doctrines of those heretics.

He was probably born about the year 125, in one of those maritime provinces of Asia Minor where the memory of the apostles was still cherished and where Christians were numerous. He was most influenced by St. Polycarp who had known the apostles or their immediate disciples

Many Asian priests and missionaries brought the gospel to the pagan Gauls and founded a local church. To this church of Lyon, Irenaeus came to serve as a priest under its first bishop, St. Pothinus, an oriental like himself. In the year 177, Irenaeus was sent to Rome. This mission explains how it was that he was not called upon to share in the martyrdom of St Pothinus during the terrible persecution in Lyons. When he returned to Lyons it was to occupy the vacant bishopric. By this time, the persecution was over. It was the spread of gnosticism in Gaul, and the ravages it was making among the Christians of his diocese, that inspired him to undertake the task of exposing its errors. He produced a treatise in five books in which he sets forth fully the inner doctrines of the various sects, and afterwards contrasts them with the teaching of the Apostles and the text of the Holy Scripture. His work, written in Greek but quickly translated to Latin, was widely circulated and succeeded in dealing a death-blow to gnosticism. At any rate, from that time onwards, it ceased to offer a serious menace to the Catholic faith.

The date of death of St. Irenaeus is not known, but it is believed to be in the year 202. The bodily remains of St. Irenaeus were buried in a crypt under the altar of what was then called the church of St. John, but was later known by the name of St. Irenaeus himself. This tomb or shrine was destroyed by the Calvinists in 1562, and all trace of his relics seems to have perished.

More about St. Irenaeus from Wikipedia

St. Irenaeus Comments

More Saints

Browse Saints by Category

Popular Saints




Image of St. Rita

St. Rita

St. Rita was born at Spoleto, Italy in 1381. At an early age, she begged her parents to allow her to enter a convent. Instead they arranged a marriage for her. Rita became a good wife and ... continue reading | shop


Image of St. Benedict

St. Benedict

In our modern world, we talk fast, we travel fast, and we even pray fast. Have you ever attended rosaries where people seem to say the words at breakneck speed -- apparently more worried ... continue reading | shop


Image of Our Lady of Guadalupe

Our Lady of Guadalupe

Our Lady of Guadalupe December 12 (USA) When we reflect on the feast of Our Lady of Guadalupe we learn two important lessons, one of faith and one of understanding. Missionaries who first ... continue reading | shop

All Popular Saints

Saint of the Day

Image of St. Francis Borgia

St. Francis Borgia

Francis was a young nobleman at the court of the King of Spain. He became a Duke when he was only thirty-three and lived a happy, peaceful life with his wife Eleanor and their eight children. But ... continue reading

More Saint of the Day

Saint of the Day by E-Mail

Saint of the Day newsletter icon

Learn about the lives of the saints and other saint resources, including a calendar, over 5,000 saint biographies, our most popular saints, and a list of patron saints. 7 days / week. See Sample


Female Saints

Image of St. Agnes

St. Agnes

St. Agnes was a Roman girl who was only thirteen years old when she suffered martyrdom for her Faith. Agnes had made a promise, a promise to God never to stain her purity. Her love for the Lord was very great and she hated sin even more than death! Since she was very ... continue reading

More Female Saints

Saint Calendar
Saint Feast Days
Saint Fun Facts


Image of St. Michael the Archangel

St. Michael the Archangel

St. Michael the Archangel - Feast day - September 29th The name Michael signifies "Who is like to God?" and was the warcry of the good angels in the battle fought in heaven against satan and his followers. Holy Scripture describes St. Michael as "one of the chief ... continue reading

Image of St. Gabriel, the Archangel

St. Gabriel, the Archangel

The name Gabriel means "man of God," or "God has shown himself mighty." It appears first in the prophesies of Daniel in the Old Testament. The angel announced to Daniel the prophecy of the seventy weeks. His name also occurs in the apocryphal book of Henoch. He was the ... continue reading

Saints Fun Facts

Saints Fun Facts for Bl. Alvarez of Corova

Bl. Alvarez of Corova

Alvarez was born in either Lisbon, Portugal, or Cordova, Spain. He entered the Dominican convent at Cordova in 1368. He became known for his preaching prowess in Spain and Italy, was confessor and ... continue reading

Saints Fun Facts for St. Paul Miki

St. Paul Miki

Paul was the son of a Japanese military leader. He was born at Tounucumada, Japan, was educated at the Jesuit college of Anziquiama, joined the Jesuits in 1580, and became known for his eloquent ... continue reading

Christian Saints & Heroes

Image of St. Therese of Lisieux

Jennifer Hartline: Trying to Learn Humility From St. Therese

By Jennifer Hartline

St. Therese helps me understand: "the splendor of the rose and the whiteness of the lily do not take away the perfume of the little violet or the delightful simplicity of the daisy.if all flowers wanted to be roses, nature would lose her springtime beauty, and the ... continue reading

More Christian Saints & Heroes


Newsletter Sign Up icon

Stay up to date with the latest news, information, and special offers

Subscribe to Catholic OnlineYouTube Channel

Daily Readings

Reading 1, Joel 4:12-21
12 'Let the nations rouse themselves and march to the ... Read More

Psalm, Psalms 97:1-2, 5-6, 11-12
1 Yahweh is king! Let earth rejoice, the many isles ... Read More

Gospel, Luke 11:27-28
27 It happened that as he was speaking, a woman in ... Read More

Saint of the Day

Saint of the Day for October 10th, 2015 Image

St. Francis Borgia
October 10: Francis was a young nobleman at the court of the King of Spain. ... Read More