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Alexander of Constantinople
Bishop of Byzantium and the first bishop of Constantinople
SaintResearchedAncient RomePre-congregation
Feast: 30 August (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
250
Died
337
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Constantinople, Saint Alexander, bishop, whose apostolic prayer, as Saint Gregory of Nazianzus writes, crushed the head of Arian impiety.
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 28 August as a bishop of Constantinople whose prayer overcame the Arian heresy.
Connected on this site
- Gregory of Nazianzus Saint“At Constantinople, Saint Alexander, bishop, whose apostolic prayer, as Saint Gregory of Nazianzus writes, crushed the head of Arian impiety.” — this site's research
- Metrophanes of Byzantium Saint“According to Gelasius of Cyzicus, Metrophanes was alive during the First Council of Nicaea (325), but could not partake due to his age and ill health, so he sent instead Alexander of Constantinople, whom he destined as his successor.” — Wikipedia
Sources
- Roman Martyrology, 28 August (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q982488 — dates, feast day and identifiers (CC0)
- English Wikipedia — Alexander of Constantinople (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.