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Gereon
Soldier and martyr
SaintFull write-upAncient RomePre-congregation
Feast: 10 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
201
Died
304
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Cologne in Germany, Saints Gereon and companions, martyrs, who for the true faith courageously offered their necks to the sword.
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 10 October as a martyr of Cologne who with his companions offered his neck to the sword for the true faith.
Sources
- Roman Martyrology, 10 October (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q2142772 — dates, feast day and identifiers (CC0)
- English Wikipedia — Gereon (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.