Prince Philip, Duke of Edinburgh a British prince in 1957. Prince Philip and Queen Elizabeth II have four children: Prince Charles, Princess Anne, Prince Andrew, and Prince Edward. Through a British Order in Council issued in 1960, descendants of Philip and Elizabeth not bearing royal styles and titles can use the surname Mountbatten-Windsor, which has also been used by some members of the royal family who do hold titles, such as Prince Andrew, Princess Anne and Prince Edward. A keen sports enthusiast, Philip helped develop the equestrian event of carriage driving. He is a patron, president or member of over 780 organisations and serves as
Prince Christoph of Hesse the sister of the future Prince Philip, Duke of Edinburgh. They had five children: Prince Christoph of Hesse Christoph Ernst August of Hesse (Frankfurt, 14 May 1901 – Apennine Mountains near Forlì, 7 October 1943) was the fifth son of Prince Frederick Charles of Hesse and Princess Margaret of Prussia. He was a German SS officer killed in a plane crash during World War II. He was a brother-in-law of Prince Philip, the consort of Queen Elizabeth II. Born in Frankfurt, Prince Christoph was a great-grandson of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha through their eldest daughter