Many might know that Ian Fleming used the name of a Philadelphia ornithologist for his super spy James Bond. Less might know that he used the name of Erno Goldfinger, a British real estate developer, for his super villain Auric Goldfinger.
The real James Bond was fine with Fleming’s choice. Erno, well, not so much. He took it to court.
Fleming just said that he’d change the name to Gold(something else) and Erno dropped the matter. Fleming’s publisher paid Goldfinger’s legal costs though and gave him six free copies of the book. He should have asked they be autographed.