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Mellonius
Bishop of Rotomagus
SaintFull write-upPre-congregation
Feast: 22 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
229
Died
314
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Rouen in Gallia Lugdunensis, now in France, Saint Mellonius, bishop, who is held to have proclaimed the Christian faith in this city and established the episcopal see.
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 22 October as the bishop held to have first preached the faith at Rouen and founded its see.
Sources
- Roman Martyrology, 22 October (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q767764 — dates, feast day and identifiers (CC0)
- English Wikipedia — Mellonius (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.