Katherine Mortimer, Countess of Warwick

Parents

• Roger Mortimer, 1st Earl of March

Children

• Philippa de Beauchamp
• Isabel de Beauchamp

Siblings

• Beatrice Mortimer
• John Mortimer
• Joan Mortimer
• Edmund Mortimer
• Roger Mortimer
• Agnes Mortimer, Countess of Pembroke
• Elinor ferch Roger Mortimer
• Blanche Mortimer
• Isabella Mortimer
• Maud Mortimer
• Geoffrey Mortimer
• Margaret Mortimer

Partners

• Thomas de Beauchamp