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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

Sources

Checked against the sources listed on 22 September 2026. Corrections welcome.

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