SOURCE-06414Research NeededProbable
Pierce, T. J., (1959). IORWERTH DRWYNDWN (The Flat-nosed) (died probably c. 1174...
Full citation
Pierce, T. J., (1959). IORWERTH DRWYNDWN (The Flat-nosed) (died probably c. 1174), prince of Gwynedd. Dictionary of Welsh Biography. Retrieved 25 Aug 2025, from https://biography.wales/article/s-IORW-DRW-1174. jhd