No likeness on file
Domna of Nicomedia
martyr at Nicomedia
SaintResearchedDate unknown
Feast: 12 March (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 Nicomedia in Bithynia, in present-day Turkey, commemoration of the holy martyrs Migdonius, priest, Eugenius, Maximus, Domna, Mardonius, Smaragdus and Hilarius, who were suffocated one each day, to strike terror into their other companions.
The miracles
There was never a formal cause: she has been honoured as a saint since before the Church's formal processes began.
Why that counted as sanctity
The Roman Martyrology remembers her on 12 March as a martyr at Nicomedia, one of a group suffocated one each day to strike terror into their companions.
Sources
- Roman Martyrology, 12 March (Italian Bishops' Conference, Santo del giorno)
- Wikidata Ree3e16ea — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.