Domnall Ua Conchobair
King of Connaught
About Domnall Ua Conchobair
Lived 1102 – 1118 (aged 15–16).
Domnall mac Ruaidrí Ua Conchobair (1102–1106) was King of Connacht.
Domnall was the second son of Ruaidrí na Saide Buide to assume the kingship. He deposed Domnall mac Tigernáin Ua Ruairc, been assisted by aid of Muirchertach Ua Briain, who was his father Ruaidrí's brother-in-law. Domnall was the last Ua Ruairc of Breifne to become king of Connacht.
Ua Briain, in 1106, had Domnall deposed by his younger brother, Toirdelbach Ua Conchobair, who was Muirchertach's nephew. Domnall's precise fate is unknown. Toirdelbach would in time go to great lengths to erase the descendants of his uncles and brothers from the genealogical record, leaving the succession open only to Ua Conchobair's descended from himself.
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Important facts
People in Domnall Ua Conchobair's life
Named in this biography and alive at the same time
Frequently asked questions
Who was Domnall Ua Conchobair?
King of Connaught
When was Domnall Ua Conchobair born?
Domnall Ua Conchobair was born in 1102.
When did Domnall Ua Conchobair die?
Domnall Ua Conchobair died in 1118.
Sources & further reading
· Wikipedia: Domnall Ua Conchobair
· DBpedia: Domnall Ua Conchobair
Cite this page
APA: Biography.guide. (2026). Domnall Ua Conchobair. https://biography.guide/domnall-ua-conchobair/
MLA: "Domnall Ua Conchobair." Biography.guide, https://biography.guide/domnall-ua-conchobair/.
Chicago: "Domnall Ua Conchobair." Biography.guide. https://biography.guide/domnall-ua-conchobair/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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