Baron Carl Gustaf Emil Mannerheim was a Finnish military commander and statesman. He served as the military leader of the Whites in the Finnish Civil War (1918), as regent of Finland (1918–1919), as commander-in-chief of the Finnish Defence Forces during World War II (1939–1945), and as the president of Finland (1944–1946). He became Finland's only field marshal in 1933 and was appointed honorary Marshal of Finland in 1942.
Born into a Swedish-speaking aristocratic family in the Grand Duchy of Finland, Mannerheim made a career in the Imperial Russian Army, serving in the Russo-Japanese War and the Eastern Front of World War I and rising by 1917 to the rank of lieutenant general. He had a prominent place in the 1896 coronation ceremonies for Emperor Nicholas II and later had several private meetings with him.