Ernst Hilding Waldemar Nilsson (10 May 1891 â 11 February 1971) was a Swedish heavyweight wrestler who competed at the 1912, 1920 and 1924 Summer Olympics. He won a bronze medal in freestyle wrestling in 1920. He placed fourth-fifth in the Greco-Roman and freestyle contests in 1924. Nilsson won two world titles in Greco-Roman wrestling in 1913 and 1922.