Ernst Gideon von Laudon, Austrian field marshal (d. 1790)
Ernst Gideon Freiherr von Laudon (originally Laudohn or Loudon; 13 February 1717 – 14 July 1790) was a Baltic German-born Austrian generalisimo and one of the most successful opponents of the Prussian king Frederick the Great. He served the position of military governorship of Habsburg Serbia from his capture of Belgrade in 1789 until his death while cooperating with the resistance fighters of Koča Anđelković.