Lieutenant Philip Mountbatten (later Prince Philip, Duke of Edinburgh) posed with his sisters, from left, Princess Margarita of Greece and Denmark (1905-1981), Princess Sophie of Greece and Denmark (1914-2001) and Princess Theodora of Greece and Denmark (1906-1969) in October 1947. Philip Mountbatten would go on to marry Princess Elizabeth at Westminster Abbey in London on 20th November. (Photo by Paul Popper/Popperfoto/Getty Images)
