Person

Rhodri the Great

c. 820–878 · 9th century · Also known as Rhodri Mawr

Rhodri the Great, Rhodri Mawr, was king of Gwynedd from 844 who also gained Powys and Seisyllwg, ruling most of Wales. He won a notable victory over Viking raiders in 856. He was killed fighting the English in 878, and his descendants founded the leading dynasties of medieval Wales.

Rhodri the Great
Image: David Powell · CC0 · Wikimedia Commons

Mentioned in 2 profiles

Kingdom of PowysGovernance, DeclineKingdom of GwyneddMilitary, Impact, Decline, Summary

Mentioned in 3 state histories

Kingdom of PowysKingdom of GwyneddKingdom of Seisyllwg

See also

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

Last reviewed October 2026Random entry ↻