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Hermes de Bononia
SaintFull write-upPre-congregation
Feast: 30 December (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
300
Died
400
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
The Roman Martyrology commemorates him at Vidin in Moesia, in present-day Bulgaria (the ancient Bononia), as Saint Hermes, an exorcist and martyr.
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
Listed in the Roman Martyrology as an exorcist and martyr at Bononia (Vidin) in Moesia; feast 30 December.
Sources
- Santi, beati e testimoni (santiebeati.it) - Sant' Ermete
- Wikidata Q12729956 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.