Disappearance
Early in 1945 he was appointed head of both the SD and the SS in Posen, Warthegau. Soon after he reached the city, Posen had become effectively surrounded by Red Army and was declared a fortified city (Festung). Lange, who could not have any doubts about his destiny as a prisoner, directed the police under his command with genuine fanaticism. He was wounded during February 1945 and the siege by Russian forces, and was not only promoted the SS Standartenführer (30 January 1945), but due to a decision by Hitler, February 6, 1945 he also received the German Cross in gold. Lange may have died or committed suicide when the Red Army finally seized Posen 23 February 1945 after a last ditch defence of the citadel by the remnants of the German garrison.
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