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Flavianus of Montefiascone
4th-century saint
SaintFull write-upAncient RomeDate unknown
Feast: 22 December (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
Also at Rome, St. Flavian, an ex-prefect. He was the husband of the martyred St. Dafrosa, and the father of the holy virgin martyrs, Bibiana and Demetria. Under Julian the Apostate, for Christ he was condemned, branded, and sent into exile at Acquapendente in Etruria, where he gave up his soul to God while engaged in prayer.
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 Dominican Martyrology (1955) remembers him on 22 December.
Connected on this site
- Daphrosa Saint Spouse
Sources
- The Martyrology of the Order of Friars Preachers (tr. W. R. Bonniwell OP, 1955), 22 December
- Wikidata Q3746448 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.