Queen Louise of Sweden, born a Princess of Battenberg. Her father, Prince Louis of Battenberg renounced all his German titles in 1917 and anglicised his family name to Mountbatten. He was then created the first Marquess of Milford Haven in the peerage of the United Kingdom. His daughter was then as Lady Louise Mountbatten. Louise: sister of Louis Mountbatten, 1st Earl Mountbatten of Burma, an aunt of Prince Philip, Duke of Edinburgh, and a niece of Empress Alexandra Feodorovna of Russia.