Picture: bph (Bischöfliche Pressestelle Hildesheim) · Attribution · Wikimedia Commons
Jacob of Nisibis
Syrian saint
SaintResearchedAncient RomePre-congregation
Feast: 15 July (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
300
Died
338
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Nisibis in Mesopotamia, in the territory of present-day Turkey, Saint Jacob, first bishop of this city, who took part in the Council of Nicaea and governed his flock in peace, nourishing it and defending it from the assault of the enemies of the faith.
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 15 July as the first bishop of Nisibis, who took part in the Council of Nicaea.
Connected on this site
- Ephrem the Syrian Saint Pupil“He was lauded as the "Moses of Mesopotamia", and was the spiritual father of the renowned writer and theologian Ephrem the Syrian.” — Wikipedia
- Aphrahat Saint“His writings were long confused with those of Jacob of Nisibis.” — this site's research
Sources
- Roman Martyrology, 15 July (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q220017 — dates, feast day and identifiers (CC0)
- English Wikipedia — Jacob of Nisibis (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.