Gillis Grafström (7 June 1893 – 14 April 1938) of Sweden invented the flying sit spin and the Grafström spin, a variation of the camel spin. He won three successive Olympic gold medals in Men’s Figure Skating (1920, 1924, 1928) as well as an Olympic silver medal in the same event in 1932, and three World Championships (1922, 1924, 1929).