Person

Diarmait Mac Murchada

c. 1110–1171 · 12th century · Also known as Dermot MacMurrough

Diarmait Mac Murchada was King of Leinster of the Uí Chennselaig dynasty. Driven out by the High King Ruaidrí Ua Conchobair and Tigernán Ua Ruairc in 1166, he sought help from Henry II of England and recruited Anglo-Norman knights, above all Richard de Clare, known as Strongbow, who married his daughter Aoife. Their capture of Waterford and Dublin in 1170 began the Anglo-Norman invasion of Ireland.

Mentioned in 6 state histories

See also

Cite this entry
APA
The Epoch Institute. (2026). Diarmait Mac Murchada. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/diarmait-mac-murchada
MLA
“Diarmait Mac Murchada.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/diarmait-mac-murchada. Accessed .
Chicago
The Epoch Institute. “Diarmait Mac Murchada.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/diarmait-mac-murchada.
Harvard
The Epoch Institute (2026) ‘Diarmait Mac Murchada’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/diarmait-mac-murchada (Accessed: ).

Last reviewed October 2026Random entry ↻