Yes he did live. In fact he died sometime in the early 90's. The real mystery is whether a Maj. Konig(the man vasily zaitsev killed in Enemy at The Gates) actually existed.

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"Family, friends, religion. These are the demons you must slay if you are to become successfull in bussiness. When opportunity knocks, you don't want to be sitting in some phoney-baloney church... or a SINAGOGUE!" - Montgomery Burns