No likeness on file
Ammonius the Priest of Alexandria
priest and martyr at Alexandria
SaintFull write-upDate unknown
Feast: 8 September (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 Alexandria in Egypt, Saints Faustus, Dius and Ammonius, priests and martyrs, who in the persecution of the emperor Diocletian received the crown of martyrdom together with the bishop Saint Peter.
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 8 September as a priest of Alexandria who received the crown of martyrdom in the persecution of Diocletian together with the bishop Saint Peter.
Sources
Checked against the sources listed on 22 September 2026. Corrections welcome.