Kings of South Wales and Gwynedd
Gwriad b abt 778, of Isle of Man. He md Esyllt verch Cynan-Dindaethwy abt 796, daughter of Cynan-Dindaethwy ap Rhodri-Molwynog, King of Gwynedd.
Child of Gwriad and Esyllt verch Cynan was:
Merfyn-Frych ap Gwriad, King of Gwynedd, b abt 802, d 844. The identity of his wife is not known.
Children of Rhodri-Mawr ap Merfyn were:
Cadell ap Rhodri-Mawr, King of South Wales, b abt 863, d 910. The identity of his wife is not known.
Child of Cadell ap Rhodri-Mawr was:
Hywel-Dda ap Cadell, King of South Wales, b abt 895, d 950. He md Elen verch Llywarch abt 912, daughter of Llywarch ap Hyfaidd. She was b abt 900, d 929.
Child of Owain ap Hywel-Dda was:
Maredudd ap Owain, Prince of Deheubarth, b abt 955, d 999. the identity of his wife is not known.
Anarawd ap Rhodri-Mawr, King of Gwynedd, b abt 865, d 916. The identity of his wife is not known.
Child of Anarawd ap Rhodri-Mawr was:
Idwal-Voel ap Anarawd, King of Gwynedd, b abt 908, d 943. The identity of his wife is uncertain.
Child of Meuric ap Idwal-Voel was:
Idwal ap Meuric, King of Gwynedd, b abt 960, d abt 997. The identity of his wife is not known.
Child of Iago ap Idwal was:
Cynan ap Iago b abt 1030. He md Radnaillt of Dublin abt 1053, daughter of Amlaib mac Sitric and Maelcorcre ingen Dunlaing. She was b abt 1038, of Dublin, Ireland.
Children of Gruffydd ap Cynan and Angharad verch Owain were:
 Gwladys verch Llywarch abt 1125, Wales, daughter of Sir Llywarch ap Trahearn, Lord of Arwystli and Pembroke, and Dyddgu verch Iorwerth. She was b abt 1112, Arwystli, Montgomeryshire, Wales.
Child of of Owain-Gwynedd ap Gruffydd and Gwladys verch Llywarch was:
Child of Iorwerth Drwyndwn ap Owain and Marared verch Gryffydd was:
Llewelyn-Fawr ap Iorwerth, Prince of North Wales, "the Great", b 1173, Aberffraw Castle, Anglesey, Wales, d 11 Apr 1240, Aberconwy, Caernarvonshire, Wales. He md:
Margaret/Margred verch Llewelyn b abt 1210, Caernarvonshire, Wales, d abt 1263. She md:
Children of Llewelyn-Fawr ap Iorwerth and Joan Plantagenet were:
Children of Owain Gwynedd ap Gruffydd and Christina verch Goronwy were:
a. She is traditionally shown as the daughter of Prince Llewelyn by an unknown mistress, but a posting by Douglas Richardson on soc.genealogy.medieval, states the following in support of Gwladys-Dhu as a daughter of Llewelyn by Princess Joan. Prince Llewelyn received in free marriage to Joan, daughter of John "Lackland", King of England, the manors of Knighton and Norton in Shropshire, which were then settled, soon after Gwladys' marriage, on her husband Ralph de Mortimer. This scenario was repeated with another daughter of Llewelyn and Joan, namely Helen/Ellen. This is, of course, not absolute proof that Gwladys was the daughter of Joan, but does provide compelling support for this relationship.
AR: Line 27[27-28], Line 29A[27-28], Line 176[5-7], Line 236[7-8], Line 239[4-6]; Stewart Baldwin, click on his name at left, then go to his homepage, [ref: Bartrum's Welsh Genealogies]; SGM: Douglas Richardson [ref: Thirteenth Century England VI, The Mortimer Family and the Making of the March, by J. J. Crump, 1995, pp 117-126; Suzanne Doig.
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