The Welsh Bruts state that "Rhys ap Tewdwr, king of Deheubarth, was slain by the Frenchmen who were inhabiting Brycheiniog."
Rhys Hughes | Jonathan Rhys Meyers | Griff Rhys Jones | Rhys Chatham | John Rhys-Davies | John Rhys | Rhys Darby | Rhys ap Gruffydd | Paul Rhys | Rhys Muldoon | Rhys Ifans | Ernest Rhys | Adam Rhys Jones | Rhys Fulber | Rhys Brydydd | Rhisiart ap Rhys | Carol Ap Rhys Pryce | Rhys Millen | Rhys ap Thomas | Jean Rhys | Ceri Rhys Matthews | Brandon Rhys-Williams | William Rhys-Herbert | T. Rhys Thomas | Thomas William Rhys Davids | Shani Rhys James | Rhys Weston | Rhys Thomas (comedian) | Rhys Thomas | Rhys Taylor |
The FitzGerald dynasty and related families of Ireland are female line descendants of the Welsh royal family through Nest, daughter of Rhys ap Tewdwr, last King of Deheubarth, whose descendants include Elizabeth I, John F. Kennedy, and Diana Princess of Wales.
The Prince of Gwynedd owed an honour debt to the House of Dinefŵr, as Gruffydd's father, Rhys ap Tewdwr, had aided Gruffydd ap Cynan in his own bid to reclaim Gwynedd from rivals in 1081.