Saint Gallicanus
Roman martyr in Egypt in 363 AD
Feast: 25 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
According to his Acts, which the Catholic Encyclopedia says are not very reliable, Gallicanus was a distinguished Roman general in the war against the Persians and a consul. After becoming a Christian he withdrew to Ostia, founded a hospital and endowed a church built by Constantine.
Under Julian the Apostate he was banished to Egypt, where he lived among the hermits of the desert and died a martyr in 363. His relics are at Sant'Andrea della Valle in Rome, and he is commemorated on 25 June.
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
A Roman general and consul who became a Christian and died in exile under Julian.
- Catholic Encyclopedia (1913), via New Advent - Sts. Gallicanus
- Wikidata Q16965184 — dates, feast day and identifiers (CC0)
- English Wikipedia — Saint Gallicanus (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.