Owain 1369–c.1416 Owain ap Gruffydd, Lord of Glyndyfrdwy and Lord of Cynllaith Owain Owain ap Gruffydd rose in revolt against the English crown in 1400 and proclaimed himself Prince of Wales. He became more widely known as Owain Glyndŵr. After his death, at least one of his sons survived him, along with one of his brothers, Tudur ap Gruffudd, styled the Lord of Gwyddelwern. 1416–c.1421? Maredudd ab Owain Glyndŵr References Jacob Youde William Lloyd, The history of the princes, the lords marcher, and the ancient nobility of Powys Fadog, and the ancient lords of Arwystli, Cedewen, and Meirionydd J. Beverley-Smith, Llywelyn ap Gruffudd, Prince of Wales (1998) http://www.sewellgenealogy.com/p70.htm#i5288 https://web.archive.org/web/20080709045952/http://freespace.virgin.net/owston.tj/walesprinces.htm http://www.maximiliangenealogy.co.uk/burke1/Royal%20Descents/hughesofgwerclas_1.htm 1277 disestablishments in Europe States and territories established in 1160 Kingdoms of Wales History of Powys The Lordship of Bromfield and Yale