Terence Albert O'Brien
Irish Roman Catholic bishop, martyr and blessed
Feast: 30 October (not on the universal Roman calendar; kept in the Roman Martyrology or local calendars)
Who they were
Terence O'Brien of Limerick became a Dominican, studied at Toledo, and was prior and later provincial of his order in Ireland. He was made coadjutor Bishop of Emly and consecrated in 1647.
During the siege of Limerick in 1651 he urged stubborn resistance and was excluded from quarter. Found after the surrender, he was condemned by court martial and executed at Limerick on 31 October 1651.
The miracles
As a martyr he was raised to the altars without a miracle.
Why that counted as sanctity
A Dominican bishop who died with his city.
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.
- Catholic Encyclopedia (1913), via New Advent - Terence Albert O'Brien
- Wikidata Q2649185 — dates, feast day and identifiers (CC0)
- English Wikipedia — Terence O'Brien (bishop) (CC BY-SA)
Checked against the sources listed on 21 September 2026. Corrections welcome.