The Mountbatten family is a British dynasty that originated as an English branch of the German princely Battenberg family. The name was adopted on 14 July 1917, three days before the British royal family changed its name to “Windsor”, by members of the Battenberg family residing in the United Kingdom, due to rising anti-German sentiment among the British public during World War I. The name is a direct Anglicisation of the German Battenberg, or Batten mountain, a small town in Hesse. The titles of count and later prince of Battenberg had been granted in the mid-19th century to a morganatic branch of the House of Hesse-Darmstadt, itself a cadet branch of the House of Hesse.