Gruffudd ap Rhys ap Tewdwr Prince of South Wales
- Marriage (1): Gwenllian verch Gruffudd ap Cynan of North Wales
- Died: Bef 1150
Another name for Gruffudd was Gruffudd ap Rhys ap Tewdwr.
Source: Welsh Settlement of Pennsylvania by Charles H. Browning, Philadelphia, 1912, p. 281, gives his title as Prince of South Wales.
Source: A History of Wales by John Davies, London, 2007, pp. 80-81
Head of the house of Dinefwr
From A History of Wales by John Davies, London, 2007, p. 103:
"A few months after the death of Rhys [in 1093], the forces of Roger, earl of Shrewsbury, surged from Powys into Ceredigion; they built a castle on the estuary of the river Teifi (Aberteifi--Cardigan) and they continued their way towards the fertile lands of southern Dyfed. There, Roger's son Arnulf seized the cantref of Penfro, where he built Pembroke Castle, one of the greatest of the strongholds of the Normans in Wales. Hywel, Rhys's youngest son, was imprivoned by Arnulf, and Gruffudd, the eldest was taken to Ireland for refuge"
Ibid, p. 121:
"The Norman hold upon Deheubarth was especially fragile. There, Gruffud ap Rhys ap Tewdwr and his wife Gwenllian were killed in an attack upon the invaders, but by about 1150 their sons had succeeded in seizing almost the whole of Ystrad Tywi and much of Dyfed."
Gruffudd married Gwenllian verch Gruffudd ap Cynan of North Wales, daughter of Gruffydd ap Cynan Prince of North Wales (Gwynedd) and Angharad verch Owain ap Edwin of Tegeingl. (Gwenllian verch Gruffudd ap Cynan of North Wales died before 1150.)