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Cassius
Christian martyr
SaintFull write-upPre-congregation
Born
—
unknown
Died
304
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Bonn in Germany, the holy martyrs Cassius and Florentius, with very many others.
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 10 October.
Sources
- The Martyrology of the Order of Friars Preachers (tr. W. R. Bonniwell OP, 1955), 10 October
- Wikidata Q54561633 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.