Powys

Powys was a Welsh kingdom in the Severn valley, divided in 1160. Its northern branch, Powys Fadog, ruled from Dinas Brân before breaking into lordships.

In 1277 Prince Madog II submitted to England; his castle was burned before English troops could capture it, and he died fighting alongside Llywelyn ap Gruffudd. Madog’s brother Gruffydd Fychan was pardoned but reduced to a minor noble. His descendant Owain Glyndŵr led a Welsh revolt in 1400.