Lady Rachel Cavendish (1727-1805) (1727–1805) Parents Catherine Cavendish, Duchess of Devonshire William Cavendish, 3rd Duke of Devonshire Children George Walpole Lady Mary Walpole Horatio Walpole, 2nd Earl of Orford Siblings Lord John Cavendish William Cavendish, 4th Duke of Devonshire Lady Caroline Cavendish Lady Elizabeth Cavendish Lord Frederick Cavendish Lord George Cavendish Partners Horatio Walpole, 1st Earl of Orford
