Gwladus Ddu (-1251)

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Gwladus ferch Llywelyn was born on an unknown date to Llywelyn ab Iorwerth (c1173-1240) and Joan of England (1190-1236) and died 1251 of unspecified causes. She married Reginald de Braose, 9th Baron Abergavenny (1178-1228) circa 1215 . She married Ralph de Mortimer (bef1198-1246) circa 1230 . Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from France, the United Kingdom, Germany, Belgium, the Netherlands.

Sources differ as to whether Gwladus was Llywelyn's legitimate daughter by his wife Joan or an illegitimate daughter by Tangwystl Goch. Some sources say that Joan gave her lands to Gwladus, which suggests, but does not prove, the former. Gwladus is recorded in Brut y Tywysogion as having died at Windsor in 1251.


Offspring of Gwladus Ddu and Ralph de Mortimer (bef1198-1246)
Name Birth Death Joined with
Roger Mortimer, 1st Baron Mortimer of Wigmore (1231-1282) 1231 30 October 1282 Maud de Braose (1224-1300)

Hugh de Mortimer 26 February 1181 Matilda le Meschin (-aft1189)

John de Mortimer
Peter de Mortimer

Common ancestors of Gwladus Ddu (-1251) and Ralph de Mortimer (bef1198-1246)

  1. Gwladus Ddu (-1251)
  2. Joan of England (1190-1236)
  3. John of England (1167-1216)
  4. Llywelyn ab Iorwerth (c1173-1240)

Sources and notes

‡ General



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