Picture: Andreas F. Borchert · CC BY-SA 4.0 · Wikimedia Commons
Ciarán of Clonmacnoise
Irish bishop
SaintResearchedIrelandPre-congregation
Feast: 9 September (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
516
Died
546
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
In the monastery of Clonmacnoise on the bank of the river Shannon in Ireland, Saint Ciarán, priest and abbot, founder of this monastery.
The miracles
There was never a formal cause: he has been honoured as a saint since before the Church's formal processes began.
Why that counted as sanctity
The Roman Martyrology remembers him on 9 September as priest, abbot and founder of the monastery of Clonmacnoise.
Connected on this site
- Comgall Saint Pupil
- Enda of Aran Saint Teacher
- Finnian of Clonard Saint Teacher
- Cellach of Killala Saint“The account states he was the eldest son of Eogan Bel, King of Connacht, was taught by Ciarán of Clonmacnoise.” — Wikipedia
Sources
- Roman Martyrology, 9 September (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q738988 — dates, feast day and identifiers (CC0)
- English Wikipedia — Ciarán of Clonmacnoise (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.