No likeness on file
Basilissa of Nicomedia
virgin and martyr at Nicomedia
SaintFull write-upDate unknown
Feast: 3 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 Nicomedia in Bithynia, in present-day Turkey, Saint Basilissa, virgin and martyr.
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 3 September as a virgin and martyr at Nicomedia in Bithynia.
Sources
Checked against the sources listed on 22 September 2026. Corrections welcome.