Place · river

River Irfon

The River Irfon is a river in mid Wales that rises in the Cambrian Mountains and flows south-east through Llanwrtyd Wells to join the River Wye at Builth Wells. Its valley, with the middle Wye, formed the early medieval Welsh kingdom of Buellt, and Llywelyn ap Gruffudd was killed near its banks at Cilmeri in 1282.

River Irfon
Image: Roger Kidd · CC BY-SA 2.0 · Wikimedia Commons

Mentioned in 1 state history

Kingdom of Buellt

See also

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

Last reviewed October 2026Random entry ↻