Alexander Mountbatten, 1st Marquess of Carisbrooke
Lady Iris Victoria Beatrice Grace Kemp (née Mountbatten, formerly O'Malley, later Bryan; 13 January 1920 – 1 September 1982) was an English actress and model, and a member of the Battenberg/Mountbatten family. She was the youngest great-grandchild of Queen Victoria. Wikipedia