Isabel Marshal
9 October 1200 - 17 January 1240
House: Marshal
Titles: Countess of Hertford, Countess of Cornwall
Other details
Death: Died at age 39 from liver failure during childbirth; buried at Beaulieu Abbey.
Children: 10 children, including Richard de Clare, 6th Earl of Hertford, Isabel de Brus, Lady of Annandale, Agnes de Clare, Amice de Redvers, Countess of Devon, William de Clare, Gilbert de Clare, and Henry of Almain.
Marriages: Gilbert de Clare, 4th Earl of Hertford; Richard, 1st Earl of Cornwall
Parents: William Marshal, Isabel de Clare
Sources
Compiled from various 3rd hand sources