Lady Blanche Cavendish (1898-1987) (1898–1987) Parents Evelyn Cavendish, Duchess of Devonshire Victor Cavendish, 9th Duke of Devonshire Children Pamela Cobbold Jean Cobbold John Cobbold Patrick Cobbold Siblings Anne Cavendish Maud Cavendish Dorothy Macmillan Rachel Cavendish Edward Cavendish, 10th Duke of Devonshire Lord Charles Arthur Francis Cavendish Partners John Murray Cobbold