Did Hitler have sexual relations with Eva Braun? What my research reveals about the Führer's love life

Last year, the results of a groundbreaking study into Adolf Hitler’s DNA were revealed to the world. The project’s senior historical consultant, Alex J Kay, looks at what the findings might be able to tell us about the Führer’s relationship with Eva Braun and the other women in his life

Published: January 25, 2026 at 4:00 PM

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In November 2025, I was lead historian on the television documentary Hitler’s DNA: Blueprint of a Dictator, which revealed the results of a world-first analysis of Adolf Hitler’s DNA. The results – as explained by the project’s lead geneticist, Turi King – revealed that Hitler had a disorder known as Kallmann syndrome. Among other things, this condition can result in impaired testosterone production, low libido, underdeveloped reproductive features and, by extension, a disrupted reproductive function.

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The revelation that Hitler had Kallmann syndrome is intriguing because of the likely implications for his private life. This finding strongly suggests a causal relationship between Hitler’s genetic make-up and particular facets of his behaviour. It complements what we already knew about this part of Hitler’s biography, and it sheds light on aspects of his life that we could previously only speculate about.

Born in provincial Austria in 1889, Hitler had a very traumatic childhood, experiencing abuse at the hands of his father and losing four out of five siblings as well as both parents by the time he turned 19. He later wrote in his autobiographical manifesto Mein Kampf that his mother’s death had been “a dreadful blow, particularly for me”.

Two black and white photos alongside each other. A woman is on the left, wearing a high collar and looking straight at the camera. On the left there is a man, wearing a jacket with several buttons down the middle. He is facing the left, and has a large moustache

Hitler’s parents, Klara and Alois, pictured around 1890. The future Nazi leader would go on to describe his mother’s death in 1907 as “a dreadful blow” (Image by Topfoto)

The family doctor, Eduard Bloch, subsequently remarked: “While [Hitler] was not a ‘mother’s boy’ in the usual sense, I have never witnessed a closer attachment.” Hitler was at his mother’s bedside when she passed away. Dr Bloch later observed: “In all my career, I have never seen anyone so prostrate with grief as Adolf Hitler.” Experiencing such loss during his formative years would have had a lasting impact on Hitler’s character.

A portrait of adolescence

As we have known since the medical file resurfaced at an auction in 2010, a physical examination during Hitler’s time in Landsberg prison in 1923, following his arrest for the failed Munich putsch that November, revealed that he had “right-sided cryptorchidism” – that is, an undescended testicle.

This physical abnormality might help to explain the account given by Hitler’s closest (and perhaps only) friend during his adolescence, August Kubizek. While living in Vienna, Hitler and Kubizek shared a room from February to July 1908. Noting Hitler’s “obvious indifference to the opposite sex”, his “strict monk-like asceticism” and the fact that he “refrained from masturbation”, Kubizek observed: “my friend undoubtedly found favour with the opposite sex although, to my amazement, he never took advantage of it”.

A black and white photograph of a man, wearing a black suit with a black bow tie.

A photograph of August Kubizek, Hitler’s former roommate. Kubizek would later claim that his friend had shown an “obvious indifference to the opposite sex” (Image by Getty Images)

Commenting on the entirety of their friendship from the autumn of 1905 (not 1904, as Kubizek claimed), when they met at the opera in Linz, to the summer of 1908, when their time together in Vienna came to an end, Kubizek concluded: “I think I can say with certainty: Adolf never met a girl, either in Linz or Vienna, who actually gave herself to him.” None of the accounts of Hitler’s remaining years in the Austrian capital suggests anything changed in this regard.

Tellingly, one of Hitler’s closest confidants during the 1920s and 1930s, Ernst Hanfstaengl, later wrote:

“I can never recall having seen him in a bathing costume, nor had anyone else. A story, probably authentic, was frequently told that Hitler’s old army comrades, who had seen him in the wash-house, had noted that his genital organs were almost freakishly underdeveloped, and he doubtless had some sense of shame about displaying himself. It seemed to me that this must all be part of the underlying complex in his physical relations, which was compensated for by the terrifying urge for domination expressed in the field of politics.”

According to the historian Ian Kershaw, author of the definitive biography of the Nazi leader: “Kubizek’s account, together with the language Hitler himself used in Mein Kampf, does point at the least to an acutely disturbed and repressed sexual development.” The German historian Peter Longerich, in his own biography of Hitler, goes one step further: “In view of Hitler’s personality, it seems altogether plausible that his life was asexual: any intimate relationship would simply have been incompatible with his arrested emotional development with regard to other people and with his self-perception as a public figure through and through with an extraordinary historic mission.”

No room for a wife

Rumours that Hitler had been infected with syphilis by a Jewish prostitute were without foundation. Medical tests in 1940 showed that Hitler had not suffered from syphilis. Although the serological tests carried out in 1940 did not exclude neurosyphilis, recent medical research has concluded that the suggestion that Hitler may have had neurosyphilis is unsustainable. The discovery that Hitler had Kallmann syndrome might thus be the key to explaining his seemingly “disturbed and repressed sexual development”. As Hanfstaengl observed, Hitler must have been extremely self-conscious about his body and, for this reason, reluctant to engage in relations of an intimate or sexual nature – and perhaps even uninterested in that side of life.

The discovery that Hitler had Kallmann syndrome might be the key to explaining his seemingly ‘disturbed and repressed sexual development’

This fact would help to explain Hitler’s absolute devotion to politics to the almost complete exclusion of any kind of private life. Such devotion was exceptional among Nazi leaders. All other senior Nazis – Hermann Göring, Heinrich Himmler, Joseph Goebbels, Martin Bormann, Rudolf Hess, Albert Speer, and so on – had wives and children; some even had extramarital affairs.

Ian Kershaw once wrote: “There was no ‘private life’ for Hitler. Of course, he could enjoy his escapist films, his daily walk to the Tea-House at the Berghof, his time in his alpine idyll far from government ministries in Berlin. But these were empty routines. There was no retreat to a sphere outside the political, to a deeper existence which conditioned his public reflexes.”

The identification and testing of Hitler’s DNA, combined with the historical facts already available to us, may now explain why.

The fact that Hitler had Kallmann syndrome surely played a part in his renunciation of any kind of private life or intimate relationships. According to Christa Schroeder, who served as one of Hitler’s secretaries for the entirety of his 12 years in power: “Undoubtedly Hitler enjoyed the company of beautiful women and was inspired by them. He used eroticism, but not sex. Because of the great objective he had set himself and to which he was totally committed, sexual gratification occurred mentally.”

Hitler always claimed that his life was devoted to Germany, so that there was no room in it for a wife. It seems this claim might, at least in part, have been a way of covering up his aversion to intimate relationships, and that his genes may have played a bigger part in his decision not to marry and have children than he was willing to admit.

"Saturated with jealousy"

It is with two women that Hitler is most closely associated: Geli Raubal and Eva Braun. Geli, born in 1908 (and thus 19 years younger than Hitler), was the daughter of Hitler’s half-sister, Angela Raubal. Geli’s father died two years after her birth, and Hitler became her legal guardian in 1923. Six years later, Geli moved into Hitler’s nine-room apartment in Munich.

Hitler was overbearing and jealously possessive of his half-niece. He took her everywhere with him, and if she went out alone, she was chaperoned and had to be home early. To all intents and purposes, Geli was a prisoner. And she resented it bitterly.

A black and white photograph of a man in a suit, asleep in a deckchair. To his right, a woman in a patterned dress sits on the floor, looking at him

Hitler with his half-niece, Geli Raubal. The former medical student would take her own life in the Nazi leader’s apartment (Image by Getty Images)

On 18 September 1931, Geli shot and killed herself in the apartment, using Hitler’s own pistol. According to Ian Kershaw, his emotional relationship with Geli was “more intense than any other human relationship he had before or after”. Anni Winter, Hitler’s housekeeper in Munich from 1929 to 1945, summed it up, according to Christa Schroeder, as “a platonic love saturated with jealousy”.

Hitler took Geli everywhere with him, and if she went out alone, she was chaperoned and had to be home early

In the autumn of 1929, the same year that Geli Raubal moved into his Munich apartment, Hitler first met Eva Braun at the Munich studio of his personal photographer, Heinrich Hoffmann, where she worked as an assistant and, later, as a photographer herself. Eva, born in 1912, was nearly 23 years younger than Hitler.

The two began spending more time together from early 1932, after several months had passed since Geli Raubal’s suicide. One of Hitler’s closest political associates, Franz Xaver Schwarz – who had joined the Nazi Party in 1922, taken part in the failed Munich putsch the following November, and then served as treasurer of the Nazi Party from 1925 to 1945 – told Allied officers in July 1945 that Hitler’s relationship with Eva Braun since 1931 had been “platonic”.

Heike Görtemaker, the biographer of Eva Braun, is right to point out that Schwarz “had absolutely no reason to reveal anything about Hitler’s carefully concealed private life to his American interrogators”. However, many other people who spent years in close proximity to Hitler said the same as Schwarz. Herbert Döhring, Hitler’s caretaker at the Berghof for eight years, claimed that there was never any evidence that the two had sex.

A black and white photograph of two young women sitting on top of a wall, alongside a black dog

Eva Braun (right), with her sister, Gretl. Hitler had first met Braun at the Munich studio of his photographer, Heinrich Hoffman, in 1929 (Image by Getty Images)

The aforementioned Christa Schroeder insisted in her memoir that “Hitler was not the lover of Eva Braun”. Heinrich Hoffmann, who introduced Hitler – “a personally modest and intensely shy person” – to Eva Braun, wrote in his memoir that she “became the constant companion of his leisure hours and, to the best of my knowledge, that was all there was to it”. He added: “there never was any love story”.

While physical intimacy between them cannot be ruled out entirely, all available evidence suggests that Hitler’s relationship with Eva Braun was not sexual. In Hitler’s Munich apartment, his suite of rooms in the Reich Chancellery, at the Berghof and, later, in his Berlin bunker, Eva Braun always had her own separate bedroom.

Keeping secrets

One disturbing fact is worth pointing out here: Geli Raubal was not the only woman intimately associated with Hitler to attempt, or die by, suicide. His brief flirtation with Maria ‘Mimi’ Reiter, born in 1909 (and thus 20 years younger than Hitler), began in the autumn of 1926 when they met in Berchtesgaden. According to Kershaw, Hitler’s letters to her “were affectionate, though in a fatherly, patronising fashion”. Their friendship ended after a few months when Hitler broke off contact. Mimi Reiter unsuccessfully attempted to hang herself the following year.

During her relationship with Hitler, Eva Braun attempted suicide not once but twice, in November 1932 and May 1935 (before finally killing herself, alongside Hitler, in the Berlin bunker on 30 April 1945 – less than 40 hours after they had married). A few months after the second suicide attempt, she and her sister Gretl moved into a house that Hoffmann had bought for them on Hitler’s instructions. By the following year, Eva Braun had become a member of the Berghof inner circle around Hitler.

Nonetheless, whatever the nature of their relationship, most German people did not know about it until after the war. She was only once caught on camera with Hitler in public, when she sat directly behind him during the women’s skating competition at the 1936 Winter Olympics. Otherwise, Hitler never allowed her to be seen in public with him.

Christa Schroeder may have succeeded in explaining both the longevity and Hitler’s true motivation in entering into his long-term companionship with Eva Braun when she wrote that “Hitler as a politician could not afford a second suicide of a young woman in his close circle… This protected him against future suicide attempts and was also a shield against all his other ardent female admirers”.

A black and white photograph of a man standing in a double breasted suit, along side a woman in a dress, sitting in a chair to the right

Most German people did not know about Hitler and Braun’s relationship until after the war (Image by Getty Images)

Though he was, by all accounts, fond of Mimi Reiter, Geli Raubal and Eva Braun (as well as other women) in his own way, they were all much younger women whom Hitler could – and did – dominate.

Heinrich Hoffmann’s assessment of Hitler's view of Eva Braun likely applied to all those women with whom he formed some sort of attachment: “To him, she was just an attractive little thing, in whom, in spite of her inconsequential and feather-brained outlook – or perhaps just because of it – he found the type of relaxation and repose he sought.” Christa Schroeder concludes for all these relationships that “Hitler appears to have kept his love life platonic throughout”.

In his own account, August Kubizek leaves the reader in no doubt as to his belief that Hitler was a pronounced misogynist. According to Kershaw: “Probably, he was frightened of women – certainly of their sexuality.”

Alex J Kay is a reader in modern history at the University of Potsdam. He recently served as the senior historical consultant and co-lead on the Channel 4 and Blink Films documentary Hitler’s DNA: Blueprint of a Dictator.

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Alex J Kay and geneticist Turi King spoke to Matt Elton on the HistoryExtra podcast about their involvement in the DNA research. Listen to the full conversation.

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