Hywel ab Iorwerth

He was the eldest surviving son of Iorwerth ab Owain, a grandson of Caradog ap Gruffydd and Lord of Caerleon.

In 1175 he blinded and castrated his uncle Owain Pen-Carn, his father's younger brother, to secure his inheritance.

[1] In 1184 at the latest he became heir to his father and lord of Llefennydd, Caerleon and the wooded mountainous region of Gwynllŵg.

[3] However, he was the only Welsh lord in south-east Wales who supported the English during the 1184-85 uprising after the death of William FitzRobert, 2nd Earl of Gloucester.

He led a force to defend Glamorgan against Welsh attacks and served as castellan of Newcastle near Bridgend.