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Marcianus
Roman saint martyred during the reign of Decius
SaintFull write-upAncient RomePre-congregation
Feast: 26 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
—
unknown
Died
250
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Nicomedia in Bithynia, in present-day Turkey, Saints Lucian and Marcianus, martyrs, who tradition says were burned at the stake under the emperor Decius, by order of the proconsul Sabinus.
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 26 October as a martyr of Nicomedia who, tradition says, was burned under Decius.
Sources
- Roman Martyrology, 26 October (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q93397586 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.