Eva Braun (1912-1945) - aka Mrs. Adolf Hitler - met the 23 years older Hitler as a young girl of 17 and became his mistress a few years later. She had been working as a saleswoman in the shop of Heinrich Hoffman, who was Hitler’s photographer and one of the people who taught him the art of body language.
Hitler rehearsing a speech, using his newly gained knowledge of body language
As Eva for unknown reasons fell madly in love with Der Führer she moved in with him in 1936. Even though she lived with him she wasn't to reveal their close relationship. Life in the Hitler-chalet Berghof in Berchtesgaden wasn't always easy as she aften felt lonely, actually, just as his former (and mysterious) lover, his half-niece, Geli, who ended up killing herself - or being murdered (???) - with his gun.
Hitler and Geli who is considered to have been both his niece and his lover
Before moving in with Hitler Eva's family was investigated to make sure that there were no Jews in her lineage. However, many years after being aquitted af this "Nazi crime" BBC found some evidence that she might indeed have been of Jewish descent. That would have been a shock to the crazed Führer, but neither he nor Eva found this out so they got on with their lives until the fateful day of April 30, 1945, where they committed suicide together after getting married.
What BBC did was to test some of Eva's hair from a hairbrush. When she died DNA wasn't an issue, but now it's more or less a common part of investigating the identity or lineage of people, living or deceased. Forensic scientists analysed the mitochondrial DNA from Eva's monogrammed hairbrush and they found interesting stuff about its owner, the lover and future bride of the man who murdered 6,000,000 Jews whom he saw as unworthy of living.
These scientists found a specific sequence within the mitochondrial DNA which is passed down the maternal line from mother to daughter unchanged over the generations. It belongs to the so-called haplogroup N1b1 of the Ashkenazi Jews. According to their findings Hitler's loving and faithful lover and wife was of Jewish descent which might have sent her to a KZ-camp had he found out. There is a deep, deep irony in this, but in my opinion it's not enough to turn his racial madness into a comedy. When I learnt about it I felt like laughing, but then I saw the lines of ordinary and innocent people being shoved into the camps of death for my inner eye: The meaningless torture and horrible death of these unfortunates stand apart when it comes to human cruelty.
https://www.britannica.com/biography/Eva-Braun
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