What are examples of possibly fake historical figures?

I'm coming up with a game concept with a roster made up of people like Jesus or King Arthur whose existance in history is disputed.

My list so far is:

Jesus, King Arthur, Robin Hood, Hua Mulan, Blackbeard, Cú Chulainn, Beowulf.

Other potential characters:

Gilgamesh, Santa, that Capoeira guy that killed a guy on horseback, a saint (George?), a Centurion, Kahina and a dinosaur.

I was wondering about other characters with interesting stories or potential for good movesets (this is a fighting game). I want to have a good variety of characters and I was also thinking of dipping int o definately real characters like Genghis Khan, Rasputin or Abraham Lincoln but I wasn't sure about that because that can quickly get out of hand.

What do you think?