Isabella of Gloucester and Hertford

English noble (1226–1264)

Parents

• Gilbert de Clare, 5th Earl of Gloucester
• Isabel Marshal

Children

• John de Brus
• Robert de Brus, 6th Lord of Annandale

Siblings

• Amice de Clare
• Henry of Almain
• Richard de Clare, 6th Earl of Gloucester
• Gilbert de Clare
• Agnes de Clare
• William de Clare
• John of Cornwall
• Isabella of Cornwall
• Nicholas of Cornwall

Partners

• Robert de Brus, 5th Lord of Annandale