Eustathius of Antioch
Patriarch of Antioch
Feast: 21 February (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Eustathius, born at Side about 270, was Bishop of Beroea and from about 323 of Antioch. At the Council of Nicaea he was one of the leading opponents of Arianism, and would not admit Arian priests to his diocese.
In 331 an Arian synod deposed him on false charges and Constantine banished him to Trajanopolis in Thrace. His people wished to defend him by arms, but he calmed them, urged them to keep the true faith, and went humbly into exile, where he died.
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 bishop of Nicaea who suffered exile rather than yield to Arianism.
Connected on this site
- Evagrius of Constantinople Saint“The Nicene Christians and the deposed bishop of Antioch Eustathius of Antioch chose Evagrius for that see; but a few months later he was banished by the Roman emperor Valens, and remained in exile until his death.” — Wikipedia
- Flavian I of Antioch Saint“In association with Diodore, afterwards bishop of Tarsus, he supported the orthodox Faith against the Arian heretic Leontius of Antioch, who had succeeded Eustathius of Antioch as Patriarch of Antioch.” — Wikipedia
- Meletius of Antioch Saint“There are contrasting views about his theological position: on the one hand, he was exiled three times under Arian emperors; on the other, he was strongly opposed by those faithful to the memory of the staunchly pro-Nicene Eustathius of Antioch, whom the synod of Melitene deposed for his Homoousianism, which they…” — Wikipedia
- Catholic Encyclopedia (1913), via New Advent - St. Eustathius
- Wikidata Q511971 — dates, feast day and identifiers (CC0)
- English Wikipedia — Eustathius of Antioch (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.