Franz Sigel
Georg von Amsberg (June 24, 1821 – November 21, 1876) was a German, who served in Austria, Hungary, and the United States as a military officer in both the Hungarian revolution of 1848 and the American Civil War. Along with such other figures as Carl Schurz and Franz Sigel, he was among a group of European revolutionaries and emigrants who have been collectively termed "Forty-Eighters", a number of whom served prominently in the Union Army.