I read a bit about him many years ago, because of the Ozzy song probably. Supposedly he killed Cotton Mather by putting a curse on him, and Jimmy Page lived in his old castle and said it was haunted. My thought, after reading, was that a homely, odd little man worked the occult angle as a way to have a lot of sex he wouldn't have had otherwise. I think it was his throwing his aunt's cat out the window when he was a kid that showed others that he was 'special.'