Margaret Holles, Duchess of Newcastle-upon-Tyne

English noble (1661–1716)

Parents

• Henry Cavendish, 2nd Duke of Newcastle
• Frances Pierrepont

Children

• Henrietta Harley, Countess of Oxford and Countess Mortimer

Siblings

• Elizabeth Monck, Duchess of Albemarle
• Henry Cavendish, Earl of Ogle
• Lady Arabella Cavendish
• Lady Frances Cavendish
• Lady Catherine Cavendish

Partners

• John Holles, 1st Duke of Newcastle