Picture: Murray Nozick · CC0 · Wikimedia Commons
Guido of Acqui
Italian priest
SaintResearchedItalyPre-congregation
Feast: 2 June (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Born
1004
Died
1070
Beatified
—
not needed: before formal processes
Canonised
By tradition
recognised before formal processes began
Who they were
At Acqui in Piedmont, Saint Guido, bishop.
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 2 June as a bishop of Acqui in Piedmont.
Sources
- Roman Martyrology, 2 June (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q3779522 — dates, feast day and identifiers (CC0)
- English Wikipedia — Guido of Acqui (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.