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Modhomhnóg Oilthir
Irish saint
SaintFull write-upDate unknown
Feast: 13 February (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
—
unknown
Beatified
—
not on record
Canonised
—
not on record
Who they were
Modhomhnog, of Tioprat Fachtna, in the [south] west of Osraighe. He was of the race of Eoghan, son of Niall.
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 Martyrology of Donegal remembers him on 13 February.
Sources
- The Martyrology of Donegal (tr. J. O'Donovan, ed. J. H. Todd and W. Reeves, 1864), 13 February
- Wikidata Q130531057 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.