Gruffydd ap Rhydderch's son, Caradog ap Gruffydd (1063–1081) who was a subject of the King of Gwent and King of Morgannwg Cadwgan ap Meurig before he deposed him and took the kingdom for himself Iestyn ap Gwrgan(t) (1081–1091) Iestyn was the last ruler of an independent Morgannwg, which was thereafter in the possession of the Normans and became the lordship of Glamorgan References 1091 disestablishments States and territories established in the 940s History of Glamorgan History of Monmouthshire 942 establishments