Richard de Clare, 5th Earl of Hertford, 6th Earl of Gloucester, 2nd Lord of Glamorgan, 8th Lord of Clare was the son of Gilbert de Clare, 4th Earl of Hertford, and Isabel Marshal. He was also a powerful Marcher Lord in Wales and inherited the... Wikipedia
Born: August 4, 1222, Clare Castle, Clare, United Kingdom
Died: July 14, 1262 (age 39 years), Waltham, United Kingdom
Great-grandparents: Richard de Clare, 2nd Earl of Pembroke, Roger de Clare, 2nd Earl of Hertford, Aoife MacMurrough, and more
Grandchildren: Margaret de Clare, Baroness Badlesmere, Margaret de Clare, Eleanor de Clare, and more
Spouse: Maud de Lacy, Countess of Gloucester (m. 1238–1262)