Marcellinus and Peter
christian saints and martyrs
Feast: 2 June (current Roman calendar, optional memorial) · 2 June (1962 Missal)
Who they were
In 304, during Diocletian's great persecution, the priest Marcellinus and the exorcist Peter were arrested in Rome under the edict against the clergy, and beheaded in a wood outside the city, the 'Black Forest', afterwards called the 'White Forest'.
Their bodies were buried in the cemetery 'ad duas lauros' on today's Via Casilina, where the catacombs of Sts Marcellinus and Peter are among the most famous in the world. Pope Damasus wrote a poem for their tomb, and Pope Vigilius put their names in the Canon of the Mass.
The miracles
There was never a formal cause: Marcellinus and Peter have been honoured as martyrs since the fourth century.
Why that counted as sanctity
A priest and an exorcist gave their lives for Christ in the last great persecution, and the Church has remembered them at every Mass in the Roman Canon ever since.
- Vatican News - Saint of the day (Italian): Marcellinus and Peter
- Wikidata Q449701 — dates, feast day and identifiers (CC0)
- English Wikipedia — Marcellinus and Peter (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.