Was a great-grandson of Idwal Foel and represented the older dynasty of Gwynedd. He acceded on the death of Llywelyn ap Seisyll in 1023, but was murdered in 1039 by Llywelyn's son, Gruffydd, who ruled Gwynedd until 1063. The Brut reports that Gruffydd ‘overcame the Saxons in a multitude of battles’ but was at length killed by his own men. From 1063 until 1075 Gwynedd was ruled by his half-brother, Bleddyn ap Cynfyn, killed by Rhys ab Owain, and from 1075 to 1081 by Bleddyn's cousin, Trahearn ap Caradoc.
Subjects: British History.