Person

Tigernán Ua Ruairc

d. 1172 · 12th century · Also known as Tigernan Ua Ruairc

Tigernán Ua Ruairc (died 1172) was king of Breifne for nearly fifty years and one of the most powerful Irish rulers of the 12th century. The abduction of his wife Derbforgaill by Diarmait Mac Murchada in 1152 fed a long feud, and he helped drive Diarmait into exile in 1166, which led to the Anglo-Norman invasion. He was killed in 1172 at a parley with Hugh de Lacy.

Tigernán Ua Ruairc
Image: Erakis · Public domain · Wikimedia Commons

Mentioned in 1 state history

Kingdom of Breifne

See also

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

Last reviewed October 2026Random entry ↻