This Nobel Prize medal belonged to Hans von Euler-Chelpin, who was awarded the Nobel Prize in Chemistry in 1929 for his studies of the fermentation of sugars. He shared the prize with Arthur Harden.
Hans von Euler-Chelpin was born in Germany, where he embarked on a career in science. He moved to Sweden as a young scientist and became a professor at Stockholm University in 1906. He held a key position in biochemistry and was a member of the Nobel Committee for Chemistry in 1929–1946.
von Euler became a Swedish citizen in 1902 but retained his German citizenship and was an officer in the German artillery and air force during the First World War. When the Nazis took over, and during the Second World War, he assisted the Nazi regime. He was an active member of pro-Nazi Swedish-German organisations and had connections high up in Nazi Germany.
The medal was donated to the Nobel Prize Museum by Hans von Euler's family in 2005.
