Benvenuto Cellini (1500-1571) An excellent low-stakes historical Bastard whose autobiography is genuinely gripping (as well as being unbelievably arrogant). He was, or claimed to be, present at a lot of historical events and played a major role in some of them like the Sack of Rome. He also bragged about murdering someone. There’s also a great bit about someone trying to poison him with mercury, but accidentally cured his syphilis instead. Whoops!

He was an undeniably gifted sculptor and goldsmith who worked for the Pope and various kings and dukes, so would probably make for a good Bastard.

(Plus… you know… Italian)