Swedish sculptor Gustav Arvid Knöppel was the son of Olympic sports shooter Johan Arvid Knöppel and his wife Cecilia Elsbeth Schultz, who was a Swedish sculptor, draftswoman, printmaker, writer and painter. Gustav Arvid studied in the 1920s at the Academy of Art in Stockholm with Carl Fagerberg. With a scholarship, he traveled through the Alpine countries for seven years to become a sculptor, painter, graphic artist and writer. He was best known for his works for churches and crematoriums in Stockholm and Karlstad and portrait busts. Beginning in 1944, Knöppel owned a reserve of Scandinavian wildlife in Sälboda, and became primarily known for sculptures of animals and animal drawings, which were noted for their realism and impressionism. He worked in bronze and brass, stone, terracotta, plaster, and wood, and in the 1940s he experimented with stainless steel. As a writer, he wrote novels, descriptions of nature, stories, reports, and animal books.