Dictionary of Welsh Biography

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RHIWALLON ap CYNFYN (d. 1070 ), king of Powys .

Second son of Cynfyn ap Gwerstan by Angharad , daughter of Maredudd ap Owen , and brother of Bleddyn . Co-ruler of Powys from 1063 , he was killed at the battle of Mechain . His son Meilyr d. in 1081 , and his daughter, Gwladus , m. Rhys ap Tewdwr .


  • A History of Wales: from the Earliest Times to the Edwardian Conquest ;
  • Oxford Dictionary of National Biography


Professor Thomas Jones Pierce, M.A., F.S.A., (1905-1964), Aberystwyth

Published date: 1959