. . "Catherine Darnley" . . . "the former Lady Catherine Darnley" . "Catherine Darnley, Duchess Consort of Buckingham and Normanby" . . . . . . . "Catherine Sheffield, Duchess of Buckingham and Normanby" . "Lady Catherine Darnley" . . . . . . "Catherine Sheffield, Duchess of Buckingham and Normanby" . . .