Person

Ruaidri Ua Conchobair

c. 1116–1198 · 12th century · Also known as Rory O'Connor

Ruaidri Ua Conchobair was king of Connacht and the last high king of Ireland, recognised from 1166. The Anglo-Norman invasion that followed undermined his position, and by the Treaty of Windsor in 1175 he accepted Henry II's overlordship. He later retired to the abbey of Cong, where he died.

Ruaidri Ua Conchobair
Image: ClintMalpaso · Public domain · Wikimedia Commons

Mentioned in 3 state histories

Kingdom of ConnachtHigh Kingship of IrelandLordship of Meath

See also

Cite this entry
APA
The Epoch Institute. (2026). Ruaidri Ua Conchobair. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/ruaidri-ua-conchobair
MLA
“Ruaidri Ua Conchobair.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/ruaidri-ua-conchobair. Accessed .
Chicago
The Epoch Institute. “Ruaidri Ua Conchobair.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/ruaidri-ua-conchobair.
Harvard
The Epoch Institute (2026) ‘Ruaidri Ua Conchobair’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/ruaidri-ua-conchobair (Accessed: ).

Last reviewed October 2026Random entry ↻