Joan Courtenay

Parents

• Thomas de Courtenay, 13th Earl of Devon
• Margaret Beaufort, Countess of Devon

Children

Siblings

• Elizabeth Courtenay
• Henry Courtenay
• John Courtenay, 15th Earl of Devon
• Agnes Courtenay
• Thomas Courtenay, 14th Earl of Devon

Partners

• Roger Clifford
• Sir William Knyvett