Princess Gwladus Ddu (the Dark) ferch Llywelyn 1558,2143,2144
- Born: Cir 1206, Caernarvonshire, Wales 1558
- Marriage (1): Ralph de Mortimer in 1230 2143
- Died: 1251, Windsor, Berkshire, England about age 45 1558,2144
Noted events in her life were:
• Descendant. By her second marriage to Ralph de Mortimer of Wigmore, Gwladys was the direct ancestor to Edward IV, King of England.
Gwladus married Ralph de Mortimer, son of Roger de Mortimer of Wigmore and Isabel Millicent de Ferrers, in 1230.2143 (Ralph de Mortimer was born on 15 Feb 1190 in Wigmore Castle, Herefordshire, England 1558 and died on 6 Aug 1246 in Wigmore, Herefordshire, England 1558,2143.)