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Saint Petroc
Welsh prince and Christian saint
SaintFull write-upWalesBenedictinesPre-congregation
Feast: 4 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
450
Died
564
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
In Cornwall, Saint Petroc of Wales, abbot.
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 4 June as an abbot in Cornwall.
Connected on this site
- Gwynllyw Saint Brother or sister
- Kevin of Glendalough Saint Pupil
Sources
- Roman Martyrology, 4 June (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q534049 — dates, feast day and identifiers (CC0)
- English Wikipedia — Saint Petroc (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.