Donald Dubh MacDonald was a male anthropomorphic duck.
A member of the clan MacDonald nicknamed “Donald Dubh” (“Black Donald”), this namesake and possible ancestor of Donald Duck became famous for resisting attempts by King James IV to bring order to his provinces, to the point of burning down the city of Inverness in 1501 to show to the King that he meant business. Imprisoned in 1506, he managed to bust out of jail in 1546 and immediately returned to his fighting liftestyle; he died in Ireland in a futile attempt to find more land to conquer there.
Behind the scenes
Donald Dubh appears in the 1975 story The Famous Donalds. Black Donald McDuck was likely named after him. He is, at any rate, based on a historical figure whose name is more often spelled Domhnall Dubh.