Gwladus "Dhu" verch Llewelyn
- Born: Abt 1194, Gwynedd, Wales
- Marriage: Ralph Lord of Mortimer in 1230 in England 160,528
- Died: 1251, Windsor, Berkshire, England about age 57 194
Other names for Gwladus were Gladys "Dark Eyed" Princess of Wales and Gwladus "Dhu" Princess of Wales.
~Ancestral Roots of Certain American Colonists Who Came to America before 1700, 8th Edition, 176B:27, Llywelyn ap Iorwerth, the Great, Prince of North Wales, b. 1173, d. 11 Apr 1249; m. 1205, Joan, Princess of Wales, natural daughter of John, King of England. He had a mistress, one of who was Tanglwystl the mother of Gladys Dhu. Gladys Dhu, Widow of Reynold de Braose, married as her second husband Ralph de Mortimer and was the mother of Roger de Mortimer who married Maud de Braose. 160
Gwladus married Ralph Lord of Mortimer, son of Roger de Mortimer Baron of Mortimer and Isabel de Ferričres, in 1230 in England 160.,528 (Ralph Lord of Mortimer was born in 1190 in Wigmore, Herefordshire, England, died on 6 Aug 1246 in Wigmore, Herefordshire, England 160 and was buried in Wigmore, Herefordshire, England.)