John von NeumannPál Szalai- Jørgen Haagen Schmith (Wikipedia)
Jørgen Haagen Schmith, also spelled Jørgen Haagen Schmidt (18 December 1910 – 15 October 1944), known during the war by the codename Citronen (Danish for ’the Lemon’), was a renowned fighter in the Danish resistance movement during the German Occupation of Denmark (1940–1945). He was a saboteur, including his involvement in the bombing of the Forum Copenhagen. He was also a rescuer and liquidator. He died after a multi-hour firefight with German soldiers on 15 October 1944.