Rhiwallon ap Cynfyn of Powys

  General Notes:

~Ancestral Roots of Certain American Colonists Who Came to America before 1700, 8th Edition, 33A:23, 178:1-2, Nesta of Wales, daughter of Rhys Ap Tudor Mawr, Prince of south Wales, and his wife Gwladus, daughter of Rhiwallon ap Cynfyn of Powys, parented Henry Fitz Henry with King Henry I of England, and later married Gerald of Windsor, Constable of Pembroke Castle. ¹⁶⁰

  Information about this person:

• Web Reference: Dictionary of Welsh Biography, Rhiwallon ap Cynfyn . ¹⁰¹²
Rhiwallon ap Cynfyn, king of Powys, second son of Cynfyn ap Gwerstan, by Angharad, daughter of Maredydd ap Owen and brother of Bleddyn, co-ruler of Powys from 1063. Rhiwallon ap Cynfyn was killed at the battle of Mechain. His son was Meilyr ap Rhiwallon and his daughter, Gwladus, married Rhys ap Tewdwr.