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Marolus
Archbishop of Milan
SaintFull write-upPre-congregation
Feast: 23 April (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
423
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Milan, Saint Marolus, bishop, who was a friend of Pope Innocent I.
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 23 April as a bishop of Milan and friend of Pope Innocent I.
Connected on this site
- Innocent I Saint“At Milan, Saint Marolus, bishop, who was a friend of Pope Innocent I.” — this site's research
Sources
- Roman Martyrology, 23 April (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q3947636 — dates, feast day and identifiers (CC0)
- English Wikipedia — Marolus (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.