Middle Agesc. 590–615
Columbanus and the Irish Mission to the Continent (c. 590)
The Irish monk Columbanus left Bangor around 590, founded Luxeuil and Bobbio and clashed with Frankish kings, spreading Irish monasticism across Europe.

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Columbanus was an Irish monk who left his homeland around 590 to live as a pilgrim for Christ on the European continent. Over the next 25 years he founded monasteries at Luxeuil in Burgundy and Bobbio in northern Italy, challenged Frankish kings and bishops, and spread a demanding Irish style of monastic life. His communities became centres of learning and reform that shaped the church in Gaul and Italy for generations.
Background: Irish monks and pilgrimage
Christianity reached Ireland in the 5th century, and by the 6th century the island was dotted with monasteries. Irish monks valued peregrinatio, voluntary exile from home for the sake of God. The best-known earlier example is Columba, who founded Iona in 563, but Columbanus took the idea much further afield.
Columbanus was born in Leinster around 543. After study he entered the monastery of Bangor, on Belfast Lough, under its founder Comgall, and stayed there for many years.
Arrival in Gaul
Around 590, Columbanus set out with a small group of companions, traditionally twelve. Arriving in Gaul, he gained the support of a Merovingian king, probably Childebert II or his uncle Guntram, and received land in the Vosges region of Burgundy.
He founded a first community at Annegray, then a larger one at Luxeuil, built amid the ruins of a Roman settlement, and a third at Fontaine. Luxeuil attracted many young Franks of noble birth, and its numbers grew quickly.
Rule, penance and disputes
Columbanus wrote a strict monastic rule stressing obedience, silence, fasting and frequent prayer, together with a penitential, a list of penances for specific sins. Private, repeated confession of this kind, common in Ireland, spread through Frankish lands partly through his influence.
He also followed Irish custom in calculating the date of Easter, which differed from the method used in Gaul. When Frankish bishops objected, he wrote a forthright letter to Pope Gregory the Great defending his practice, and he refused to attend a synod on the issue.
Conflict with the court and expulsion
The decisive clash came with King Theuderic II of Burgundy and his grandmother Brunhilda. According to his biographer Jonas of Bobbio, Columbanus refused to bless Theuderic’s sons by concubines, saying they would never hold the royal sceptre, and condemned the king’s way of life.
Around 610 he was ordered back to Ireland. He was taken down the Loire to Nantes, but the ship bound for Ireland was driven back by weather. Columbanus then travelled to the court of Chlothar II in Neustria and on to Theudebert II in Austrasia.
From Lake Constance to Bobbio
With Theudebert’s permission he preached near Bregenz on Lake Constance. One of his companions, Gall, stayed behind in the region, and the later abbey of Saint Gall grew up around his hermitage.
After Theudebert’s defeat by Theuderic in 612, Columbanus crossed the Alps to Lombard Italy. King Agilulf and Queen Theodelinda granted him land at Bobbio in the Apennines, where he founded his last monastery around 614. He died there on 23 November 615.
Writings
Columbanus is unusual among early medieval missionaries because a good deal of his own writing survives. Six letters are generally accepted as his, including letters to Pope Gregory the Great, to a synod of Frankish bishops and to Pope Boniface IV. They are written in a learned Latin that shows the high standard of education in Irish monasteries.
Thirteen sermons, his two monastic rules and his penitential are also attributed to him, along with several poems whose authorship is more debated. His letter to Boniface IV, written from Italy, combines deep respect for Rome with frank criticism, a mixture typical of his character.
Legacy
Luxeuil and Bobbio became leading monasteries, and dozens of new foundations in Gaul followed Columbanian customs, often in combination with the Rule of Saint Benedict. Bobbio built up one of the great libraries of early medieval Europe.
Columbanus’ surviving letters, sermons and poems make him one of the earliest Irish writers whose works survive in quantity. In the 20th century he was celebrated as a figure of shared European heritage, and the French statesman Robert Schuman spoke of him as a patron of those seeking to build a united Europe.
Timeline
- c. 543: Columbanus is born in Leinster, Ireland.
- c. 590: He leaves Bangor with companions for Gaul.
- c. 590–600: Foundation of Annegray, Luxeuil and Fontaine in Burgundy.
- c. 600: He writes to Pope Gregory the Great about the date of Easter.
- c. 610: Expelled from Burgundy by Theuderic II and Brunhilda.
- c. 610–612: Mission near Bregenz on Lake Constance.
- c. 614: Foundation of Bobbio in northern Italy.
- 615, 23 November: Death of Columbanus at Bobbio.
Why it matters
Columbanus carried Irish monastic ideals into the heart of continental Europe. His monasteries reshaped religious life among the Franks and Lombards, and the network they created linked Ireland, Gaul and Italy in the early Middle Ages.
Frequently asked questions
Who was Columbanus?
Columbanus, also called Columban, was an Irish monk born in Leinster around 543 who trained at the monastery of Bangor. Around 590 he travelled to Gaul, where he founded monasteries and became one of the most influential churchmen of his age.
Is Columbanus the same person as Columba?
No. Columba, or Colum Cille, founded the monastery of Iona in Scotland in 563 and died in 597. Columbanus was a slightly younger Irish monk who worked on the European continent; the similar names often cause confusion.
What monasteries did Columbanus found?
In Burgundy he founded Annegray, Luxeuil and Fontaine, of which Luxeuil became the most important. Near the end of his life he founded Bobbio in northern Italy, where he died in 615.
Why was Columbanus expelled from Burgundy?
Around 610 he refused to bless the illegitimate sons of King Theuderic II and criticised the court, angering the king and his grandmother Brunhilda. He also had long disputes with Frankish bishops over the date of Easter and episcopal authority.
When did Columbanus die?
He died at Bobbio on 23 November 615, the date on which his feast is kept. His biography was written about 25 years later by Jonas, a monk of Bobbio.
Sources and further reading
- Jonas of Bobbio, Life of Columbanus
- G. S. M. Walker (ed.), Sancti Columbani Opera (1957)
- Ian Wood, The Merovingian Kingdoms 450–751 (1994)
- Encyclopaedia Britannica, "Saint Columban"
Cite this article
“Columbanus and the Irish Mission to the Continent (c. 590).” Chronicle, https://chronicle.bigworldlist.com/articles/columbanus-irish-mission-to-the-continent/.