Picture: Berthold Werner · CC BY-SA 3.0 · Wikimedia Commons
Maurus of Parentium
Catholic bishop and saint, patron saint of Poreč
SaintResearchedAncient RomePre-congregation
Feast: 21 November (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
300
Died
400
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Poreč in Istria, Saint Maurus, bishop and martyr.
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 21 November as a bishop and martyr of Poreč.
Sources
- Roman Martyrology, 21 November (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q1771530 — dates, feast day and identifiers (CC0)
- English Wikipedia — Maurus of Parentium (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.