Person

Owain Gwynedd

c. 1100–1170 · 12th century · Also known as Owain ap Gruffudd

Owain Gwynedd, son of Gruffudd ap Cynan, ruled Gwynedd from 1137 and made it the leading Welsh power. He pushed its frontier east towards the Dee, submitted to Henry II after the campaign of 1157, and in 1165 led a Welsh alliance against Henry's great invasion, which failed in the Berwyn mountains. He was among the first Welsh rulers styled prince of the Welsh.

Owain Gwynedd
Image: David Powel, Humphrey Llwyd · Public domain · Wikimedia Commons

Mentioned in 2 profiles

Kingdom of PowysDeclineKingdom of GwyneddMilitary, Governance, Summary

Mentioned in 1 state history

Kingdom of Gwynedd

See also

Cite this entry
APA
The Epoch Institute. (2026). Owain Gwynedd. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/owain-gwynedd
MLA
“Owain Gwynedd.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/owain-gwynedd. Accessed .
Chicago
The Epoch Institute. “Owain Gwynedd.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/owain-gwynedd.
Harvard
The Epoch Institute (2026) ‘Owain Gwynedd’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/owain-gwynedd (Accessed: ).

Last reviewed October 2026Random entry ↻