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RHIWALLON ap Dyngad.
Born about 965AD, of Maelor Gymraeg, Wales; son of DYNGAD ap Tudor Trevor and SISSELY verch Seferys. {S3}.

Maelor is a border area of north-east Wales. It originated as a Cantref of the Kingdom of Powys, focused on Bangor-on-Dee. The Maelor was first divided from the rest of Wales by the construction of Offa's Dyke in the eighth century, but was reclaimed for Wales during the reign of Stephen of England (1135-54) by Madog ap Maredudd of Powys. The Maelor Gymraeg, the "Welsh-speaking Maelor", is an ancient district of Wales to the west of the River Dee, and corresponds approximately to the later parishes of Bersham, Erbistock, Marchwiel, Ruabon and Wrexham in the historic county of Denbighshire which was created in 1536. The Maelor Gymraeg is separate from The Maelor Saesneg, the "English-speaking Maelor," an area of Wales along the eastern border that merged with Cheshire. {S10}.

He is NOT the Rhiwallon who married Lettice (Letita) {S6}, but that was a later Rhiwallon who was born about 1130.

He is confused with Rhiwallon ap Cynfyn, Prince of Powys, who was killed in 1069 at the Battle of Mechain in Montgomeryshire, Wales.

He died in 1040. {S5}.


  1. Cynwrig ap Rhiwallon. (Cynwric)(Cynric)(Cynrig-S6)(Kynvrig-S7)(Kenric-S8). Lord of Whittington and Maelor Cymraeg. Born about 995AD, of Maelor Gymraeg. He married Annesta (Anne), daughter of Idnerth Benfras, Lord of Maesbrook, by whom he had two sons, Dafydd and Rhiwallon. Cynwrig ap Rhiwallon is confused with Cynwrig ap Rhiwallan ap Cynfyn, who was slain by the sons of Gruffudd in (1073AD-S6)(1074-S5)(1075-S3,S9) in Lleyn (Llyn). He did not marry Judith, daughter of Ivor Hen of Rhos. Judith married a later Cynwrig ap Rhiwallon.
  2. CARADOG ap Rhiwallon. Born about 1000AD. He appears in several Llandaff Charters. In a charter which scholars date to about 1045AD, he described himself as decomitibus, comes, or comites to Meurig (ap Hywel ap Owain ap Morgan Hen), King of Glamorgan. (Text of the Book of Llan Dav, pp 261). He is described as "breaking the sanctuary" at the bidding of King Meurig by bearing off by force the wife of Seisyll from the church door. He made a death-bed grant of 100 acres to the church in about 1075, in which he remembered his many sins, including the murder of his brother Cynan. This is made with the guarantee of Roger, Earl of Hereford and lord of Gwent, son of William fitz Osbern - comitis herfordie et domini guenti Rogerii filii Willelmi filii Osberni. {S2,S4}.
  3. Cynan. (Cynvin)(Cynfyn). Murdered by his brother Caradog. {S2,S3}.
  4. Sioned (Sian)(Jonet, Janet) verch Rhiwallon. Born about 1005, of Powys, Monmouthshire, Wales. {S3}. It has been reported that she was the daughter of Rhiwallon ap Cynfyn, but source 5 assets that she is the daughter of Rhiwallon ap Dyngad, and that Rhiwalolon ap Cynfyn would have been too early. She married Ednyfed, son of Llywarch and Lucy. She died in 1068.