Joan Willoughby

Peerage person ID=9114 (d. 1350)

Parents

• Margaret Willoughby, Lady Willoughby
• Robert de Willoughby, 1st Baron Willoughby de Eresby

Children

• Robert de Umfraville

Siblings

• John Willoughby, 2nd Lord Willoughby

Partners

• Gilbert de Umfraville, 10th Earl of Angus