He didn't. Genetics confirm those are not his remains and were female.
Both the CIA and FBI confirmed, post war, Hitler was living in South America. AFAWK, he died of old age.
This is the correct answer all signs point to him leaving before the walls finally closed in. He was in a bad health before then, I don't think he lasted long over there and I presume leaderless the remining few found their own little niche and stayed there out of sight.
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