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Firminus of Metz
bishop of Metz
SaintResearchedDate unknown
Feast: 18 August (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
At Metz in Belgic Gaul, in France, Saint Firminus, bishop.
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 18 August as a bishop of Metz in Belgic Gaul.
Sources
- Roman Martyrology, 18 August (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q22235673 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.