Elizabeth Cavendish, Duchess of Devonshire second wife of William Cavendish, 5th Duke of Devonshire (1758–1824) Parents Elizabeth Davers Frederick Hervey, 4th Earl of Bristol Children Frederick Foster Caroline St. Jules Sir Augustus Foster, 1st Baronet Augustus Clifford Elizabeth Foster Siblings John Hervey, Lord Hervey Lady Mary Hervey Frederick Hervey, 1st Marquess of Bristol George Hervey Lady Louisa Hervey Partners William Cavendish, 5th Duke of Devonshire John Thomas Foster
