Given name: Jehuda Family name: Koński
Born in a family of a religious tailor. Graduated from the Tarbut Jewish junior high school. Gordonia member. Before the war he was the commander of a combat group of this organisation. Together with Szymon Lewental busied himself with buying weapons. They were denounced by a Gestapo agent and arrested at Toebbens' factory in March 1943. Tortured at the Befehlstelle, did not give any information to the Germans. Both died during the investigation.