No likeness on file
Giovanni il Buono da Siponto
Abbot in Dalmatia
BlessedResearched
Born
—
unknown
Died
—
unknown
Beatified
—
not on record
Canonised
—
not yet
Who they were
He was an abbot who built the monastery of Saint Michael on the island of Mljet, off the Dalmatian coast opposite Monte Gargano. The Roman Martyrology for 5 September names him among the blessed.
The miracles
The source does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology for 5 September honours him as a blessed abbot who founded the monastery of Saint Michael on Mljet.
Sources
- Roman Martyrology, 5 September (Italian Bishops' Conference, Santo del giorno)
- Wikidata Ra81c54b2 — dates, feast day and identifiers (CC0)
Checked against the sources listed on 22 September 2026. Corrections welcome.