Donough O'Brien, 2nd Earl of Thomond
Irish earl, died 1553
About Donough O'Brien, 2nd Earl of Thomond
Donough O'Brien, 2nd Earl of Thomond was a British.
Donough O'Brien, 2nd Earl of Thomond (; died 1 April 1553), also known as "the fat", was the son of Connor O'Brien, King of Thomond and Annabell Burke. He inherited the earldom from his uncle, Murrough O'Brien, by special remainder.
O'Brien married Helen Butler, daughter of Piers Butler, 8th Earl of Ormonde and Lady Margaret Fitzgerald. He died on 1 April 1553, after being attacked by his brothers at the family seat of Clonroad. O'Brien's brother Sir Donald was named king of Thomond by the Dalgais, but O'Brien's son, Connor, allied himself with the English and regained control of his lands.
Children of Donough O'Brien and Helen Butler: Margaret O'Brien (d. 1568) married Dermod O'Brien, 2nd Baron Inchiquin, and Richard Burke, 2nd Earl of Clanricarde Connor O'Brien, 3rd Earl of Thomond (c. 1534 – 1581) Donal or Daniel Honora married Teige Macnamara
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Important facts
Family & relationships
Frequently asked questions
Who was Donough O'Brien, 2nd Earl of Thomond?
Irish earl, died 1553
When was Donough O'Brien, 2nd Earl of Thomond born?
Donough O'Brien, 2nd Earl of Thomond was born in Ireland.
When did Donough O'Brien, 2nd Earl of Thomond die?
Donough O'Brien, 2nd Earl of Thomond died on 1 April 1553 in Ireland.
What nationality was Donough O'Brien, 2nd Earl of Thomond?
Donough O'Brien, 2nd Earl of Thomond was British.
Sources & further reading
· Wikipedia: Donough O'Brien, 2nd Earl of Thomond
· DBpedia: Donough O'Brien, 2nd Earl of Thomond
Cite this page
APA: Biography.guide. (2026). Donough O'Brien, 2nd Earl of Thomond. https://biography.guide/donough-o-brien-2nd-earl-of-thomond/
MLA: "Donough O'Brien, 2nd Earl of Thomond." Biography.guide, https://biography.guide/donough-o-brien-2nd-earl-of-thomond/.
Chicago: "Donough O'Brien, 2nd Earl of Thomond." Biography.guide. https://biography.guide/donough-o-brien-2nd-earl-of-thomond/.
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