About Saint Fiacc
Lived 415 – 520 (aged 104–105). Saint Fiacc was a catholic priest.
Saint Fiacc (c. 415–520) was a poet, the chief bishop of Leinster, and founder of two churches.
Life
His father, MacDara, was prince of the Uí Bairrche in the country around Carlow, Ireland. His mother was sister of Dubhthach moccu Lughair, the Chief Ollam of Ireland, the first of Patrick's converts at Tara, and the apostle's lifelong friend. Fiacc was a pupil to his uncle in the bardic profession and soon embraced the Faith. Subsequently, when Patrick came to Leinster, he temporarily stayed at Dubhtach's house in Uí Ceinnselaig and selected Fiacc, on Dubhtach's recommendation, to be dedicated bishop for the converts of Leinster.
Fiacc was then a widower; his wife had recently died, leaving him one son named Fiacre. Patrick gave him an alphabet written with his own hand, and Fiacc acquired with marvellous rapidity the learning necessary for the episcopal order. Patrick consecrated him, and in after time appointed him chief bishop of the province. Fiacc founded the church of Domnach-Fiech, east of the River Slaney.
After many years of austere life in this place, Fiacc was led by angelic command to remove to the west of the River Barrow, for there "he would find the place of his resurrection". The legends state that he was directed to build his oratory where he should meet a hind, his refectory where he should find a boar. He consulted Patrick, the latter fixed the site of his new church at Sletty -- "the highland"—a mile and a half northwest of Carlow. This foundation does not survive, but a medieval church and two undecorated crosses do.
Here he built a large monastery, which he ruled as abbot while at the same time he governed the surrounding country as bishop. Sletty may have been one of the first scriptoriums in Ireland.
A hymn on St. Brigid, "Audite virginis laudes", has been sometimes attributed to him, but on insufficient grounds.
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Important facts
Contemporaries
People whose lives overlapped Saint Fiacc's
Frequently asked questions
Who was Saint Fiacc?
Bishop of Leinster
When was Saint Fiacc born?
Saint Fiacc was born in 415.
When did Saint Fiacc die?
Saint Fiacc died in 520.
What was Saint Fiacc's occupation?
Saint Fiacc was a catholic priest.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Saint Fiacc. https://biography.guide/saint-fiacc/
MLA: "Saint Fiacc." Biography.guide, https://biography.guide/saint-fiacc/.
Chicago: "Saint Fiacc." Biography.guide. https://biography.guide/saint-fiacc/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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