TIL about Ivan VI of Russia, named emperor in 1740 when he was two months old, deposed in a coup thirteen months later, then kept a prisoner in solitary confinement for 20 years until his murder.
By this time twenty years of solitary confinement had disturbed Ivan's mental equilibrium, though he does not seem to have been actually insane. Nevertheless, despite the mystery surrounding him, he was well aware of his imperial origin and always called himself Gosudar (Sovereign). Instructions had been given not to educate him, but he had been taught his letters and could read his Bible.
I was most curious if like, he was even aware. Reason being Anne Frank doesn't remember much from before she knew language, only what she remembers as (very vague paraphrasing) primative instincts to want ice cream.
But it seems he was taught enough to understand his situation. Not sure if that's better or worse.
Do you mean Hellen Keller? Anne Frank was the girl living in the attic during nazi occupation in World War II. Helen Keller was blind and deaf and, to my recollection, wasn't able to communicate until adulthood when a teacher came along to teacher sign language.