Isabel Marshal
Isabel Marshal was a medieval English countess. She was the wife of both Gilbert de Clare, 4th Earl of Hertford and 5th Earl of Gloucester and Richard, 1st Earl of Cornwall. With the former, she was a great grandmother of King Robert the Bruce of... Wikipedia
Born: October 9, 1200, Pembroke Castle, Pembroke, United Kingdom
Died: January 17, 1240 (age 39 years), Berkhamsted Castle, Berkhamsted, United Kingdom
Spouse: Richard of Cornwall (m. 1231) and Gilbert de Clare, 5th Earl of Gloucester (m. 1217)
Grandmothers: Aoife MacMurrough and Sybilla of Salisbury