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Castulus
saint
SaintFull write-upAncient RomePre-congregation
Feast: 26 March (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
300
Died
286
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Rome on the Via Labicana, Saint Castulus, martyr.
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 March as a martyr at Rome on the Via Labicana.
Connected on this site
- Irene of Rome Saint Spouse“According to tradition, he was the chamberlain (or officer, valet) of Emperor Diocletian and the husband of Irene of Rome.” — Wikipedia
Sources
- Roman Martyrology, 26 March (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q167902 — dates, feast day and identifiers (CC0)
- English Wikipedia — Castulus (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.