Beato Giacomo da Ulma
German painter and stained-glass artist (1407-1491)
Feast: 11 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
At Bologna, Blessed Giacomo da Ulma Griesinger, religious of the Order of Preachers, who, though illiterate, was a skilled decorator of stained-glass windows and for fifty years offered everyone an example of dedication to work and prayer.
The miracles
The Roman Martyrology does not describe the miracles approved in the cause.
Why that counted as sanctity
The Roman Martyrology remembers him on 11 October as a Dominican stained-glass maker who for fifty years gave an example of work and prayer.
The cause
The cause continues. No postulation address is published here yet. Favours received through this person’s intercession, and offers of help, are best sent to the religious order or congregation they belonged to, or to the diocese where the cause was opened; either will pass them to the postulation.
- Roman Martyrology, 11 October (Italian Bishops' Conference, Santo del giorno)
- Wikidata Q2074849 — dates, feast day and identifiers (CC0)
- English Wikipedia — Jakob Griesinger (CC BY-SA)
Checked against the sources listed on 22 September 2026. Corrections welcome.