Gustav Mannerheim was born in 1867 in the Grand Duchy of Finland. His family had Swedish origin. Mannerheim started his military carreer in the Imperial Russian Army and became a political and military leader of the independent Finland from 1919-1946.
During the Winter war he was the commander of the Finnish Armed Forces, and in 1944 he became the president of Finland. Mannerheim was voted as the greatest leader of the history of Finland