Throughout history, some royal rulers were wise and just; others, well, they were just plain loony. From the inbred and mentally deficient to the delusional and the criminally insane, those royal eccentrics come to life here. Some are well-known, like: Ivan the Terrible of Russia, who enjoyed torturing both animals and people for sport. Others were less famous, but no less twisted, including Hungary's Erzsebet Bathory, who believed she could improve...