Lady Mary Sackville

Parents

• Arabella Diana Cope
• John Sackville, 3rd Duke of Dorset

Children

Siblings

• George Sackville, 4th Duke of Dorset
• Elizabeth Sackville-West, Countess De La Warr

Partners

• William Amherst, 1st Earl Amherst
• Other Windsor, 6th Earl of Plymouth