Adolf Hitler, the Nazi Germany leader who sought to expand his empire across Europe, may have suffered something of a “Napoleon complex” after all, according to historians.

Adolf Hitler’s Micropenis

In Hitler’s Last Day: Minute by Minute, a new book from historians Jonathan Mayo and Emma Craigie, it’s alleged that Hitler suffered from a condition called hypospadias. The condition led to him having an abnormally small penis, otherwise known as a micropenis. Additionally, it is claimed that Hitler had an undescended testicle.

“Hitler himself is believed to have had two forms of genital abnormality: an undescended testicle and a rare condition called penile hypospadias in which the urethra opens on the under side of the penis,” Mayo and Craigie write in Minute by Minute, reported The Telegraph.

Mayo and Craigie back up their claims with previously unrecovered medical records belonging to Hitler. According to their research, they have determined that Hitler’s hypospadias was so severe as to affect the way in which he urinated.

It had long been rumored that Hitler had only one testicle, and that he was asexual. Mayo and Craigie claim that the documentation that they have unearthed proves that his personal doctor, Theodor Morell, diagnosed him with hypospadias – and that he had attempted to boost Hitler’s sex drive with prescriptions for hormones and amphetamines.

Despite Mayo and Craigie’s claims, the condition of Hitler’s manhood is still unknown and will remain the subject of debate. There’s previously been claims and evidence put forth that Hitler maintained a normal sex life with his mistress Eva Braun and others.