Romanus Ostiarius
Roman Christian martyr and saint (died c.258)
Feast: 9 August (1962 Missal, commemoration) · not on the current Roman calendar
Who they were
Romanus was a doorkeeper (ostiary) of the Church of Rome, named in the Liber Pontificalis as one of the clerics martyred with St Lawrence in August 258; the Catholic Encyclopedia sees no reason to doubt that tradition. He was buried, like Lawrence, in the catacomb of Cyriaca on the Via Tiburtina, and seventh-century pilgrim guides mention his grave.
The later, legendary Acts of St Lawrence turned him into a soldier; that version entered the Roman Martyrology, which keeps his feast on 9 August.
The miracles
There was never a formal cause: Romanus has been honoured as a martyr since the early Church.
Why that counted as sanctity
Romanus is honoured as a martyr who died for Christ alongside St Lawrence.
- Catholic Encyclopedia (1913), via New Advent - Saints Romanus
- Wikidata Q2044076 — dates, feast day and identifiers (CC0)
- English Wikipedia — Romanus Ostiarius (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.