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Martinianus of Milan
Archbishop of Milan
SaintResearchedPre-congregation
Feast: 29 December (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
350
Died
435
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Milan, Saint Martinianus, 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 29 December as a bishop of Milan.
Sources
- Roman Martyrology, 29 December (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q3295868 — dates, feast day and identifiers (CC0)
- English Wikipedia — Martinianus (bishop of Milan) (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.