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An early Irish bishop linked with Saint Patrick, he is remembered for helping shape the church at Sletty and for traditions that connect him with one of the oldest surviving Irish texts about Patrick. His story sits at the crossroads of faith, poetry, and the beginnings of Christian learning in Ireland.

by active 6th century Bishop of Sletty Saint Fiech
Remembered as Saint Fiacc or Fiech, he was an early Irish church leader associated with Sletty in what is now County Carlow. Medieval tradition presents him as a disciple of Saint Patrick, who ordained him for the Leinster region and guided the founding of his church at Sletty.
Fiacc was also connected with Ireland’s learned world. Sources describe him as related to the poet Dubthach, and later tradition credits him with a metrical Irish life of Saint Patrick. Modern reference works are more cautious, noting that the surviving poem usually attributed to him was probably written later, though it may have been composed in the Sletty tradition.
He was remembered both as bishop and as the founder of an important monastic center at Sletty, which remained a notable ecclesiastical site in early medieval Ireland. His feast day is traditionally kept on October 12.