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Ivo of Kermartin
Breton priest and saint (1253-1303)
SaintFull write-upFranceFranciscansPre-congregation
Feast: 19 May (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
1253
Died
1303
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
In a castle near Tréguier in Brittany in France, Saint Ivo, priest, who upheld justice without respect of persons, fostered concord, defended the causes of orphans, widows and the poor for love of Christ, and welcomed the needy into his home.
The miracles
The Roman Martyrology does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology remembers him on 19 May as a priest near Tréguier who defended orphans, widows and the poor and upheld justice for all.
Sources
- Roman Martyrology, 19 May (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q358325 — dates, feast day and identifiers (CC0)
- English Wikipedia — Ivo of Kermartin (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.