Picture: Gerolamo Giovenone · Public domain · Wikimedia Commons
Saint Protasius
ancient Roman saint
SaintFull write-upDate unknown
Born
—
unknown
Died
—
unknown
Beatified
—
not on record
Canonised
—
not on record
Who they were
At Milan, the commemoration of Saints Gervasius and Protasius, martyrs, whose bodies were found by Saint Ambrose and on this day solemnly translated into the new basilica he had built.
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 19 June as a martyr of Milan whose body, with that of Saint Gervasius, was found by Saint Ambrose and translated into his new basilica.
Connected on this site
- Gervasius and Protasius Saint honoured together
- Valeria of Milan Saint Parent, Mother
- Vitalis of Milan Saint Father
- Gervasius and Protasius Saint“At Milan, the commemoration of Saints Gervasius and Protasius, martyrs, whose bodies were found by Saint Ambrose and on this day solemnly translated into the new basilica he had built.” — this site's research
Sources
- Roman Martyrology, 19 June (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q54578138 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.