Picture: Giovanni Battista Tiepolo · Public domain · Wikimedia Commons
San Giovanni vescovo
SaintFull write-upPre-congregation
Feast: 15 January (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
650
Died
—
unknown
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Bergamo (in Italy), St. John, bishop, who was slain by the Arians for defending the Catholic 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 Dominican Martyrology (1955) remembers him on 11 July.
Sources
- The Martyrology of the Order of Friars Preachers (tr. W. R. Bonniwell OP, 1955), 11 July
- Wikidata Q30887642 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.