Today, in 1801, Tsar Paul I of Russia died. Poor Paul did not have a very good life at all. I mean, don't get me wrong, he was the most powerful man in Russia for a time, so clearly he wasn't, you know, the most hard done by person on the planet. But he didn't have the easiest time of it, either.
He was the son of Catherine the Great and Grand Duke Peter. Except, he wasn't. Maybe In her memoirs, his mother strongly implied that he was the product of a relationship with one of her lovers. But his mother hated him, and wanted to cast doubt on his claim to the throne, so this, combined with his physical resemblance to his father, suggest that he actually was Peter's son. Regardless of which claim is true, the fact that this was discussed around him from an early age can't have done him much good really.
In 1764, when he was a mere 10 years old, Lord Buckingham, who was the British Ambassador at the Russian court, suggested that his mother would have had him killed if she wasn't afraid of the social consequences of being implicated in a murder. Again, the story has no clear basis in fact, but the rumors circulated wildly, and it is likely that Paul at least heard of them, even if he did not believe them.
Catherine's actions - whether true or not - do seem to have had some effect on him. When he was 16, he started suspecting that his mother was trying to kill him, and once openly accused her of filling his food with broken glass. Once he was old enough, Catherine ensured that he was married off and sent to live in various parts of the realm far away from her. She openly insulted him in front of her favourites when he was at court, and encouraged them to do the same, as well as lavishing luxurious gifts on them whilst ignoring her own son.
Once his wife had given birth to a son - later to become Alexander I - Catherine was determined to exclude Paul from the line of succession. For this reason, when she eventually did die in 1796, Paul immediately seized control and demanded that any documents which stated that he was to be cut out of the line to the throne be destroyed.
Years of living in his mother's shadow had not prepared him well for rule, and he proved an inadequate monarch over his short five year reign. He was far too concerned with the possibility of his own assassination, and, whilst most people wrote off his crazy conspiracy theories as just that, he did at least have the satisfaction of eventually proving them wrong.
Or he would have, had he lived. Which, after being attacked with a sword, then strangled, then finally trampled to death in his bedroom, he did not. Poor Paul.