Gösta Valdemar Jönsson (later Frändfors, 25 November 1915 – 8 August 1973) was a Swedish wrestler. He competed at the 1936 and 1948 Summer Olympics and won a bronze and a silver medal in the featherweight and lightweight freestyle divisions, respectively. He won three more medal at the European championships of 1937–1947, competing in freestyle and Greco-Roman wrestling. In 1947, after becoming the European champion in the Greco-Roman 67 kg division, he was awarded the Svenska Dagbladet Gold Medal. He was born Gösta Valdemar Jönsson, and in 1941 changed his last name to Frändfors.
https://en.wikipedia.org/wiki/G%C3%B6sta_Fr%C3%A4ndfors