Person

Hywel Dda

c. 880–950 · 10th century · Also known as Hywel the Good

Hywel Dda, Hywel the Good, was a Welsh king, grandson of Rhodri the Great. He inherited Seisyllwg, united it with Dyfed around 920 to form Deheubarth and later ruled most of Wales. He kept peace with the English king Athelstan, and Welsh tradition credits him with codifying the native laws of Wales.

Hywel Dda
Image: Humphrey Llwyd, David Powell · Public domain · Wikimedia Commons

Mentioned in 2 profiles

Kingdom of PowysSocioeconomyKingdom of GwyneddGovernance, Impact, Decline

Mentioned in 5 state histories

Kingdom of DyfedKingdom of CeredigionKingdom of Ystrad TywiKingdom of SeisyllwgKingdom of Deheubarth

See also

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

Last reviewed October 2026Random entry ↻