I’m blanking out on the name, and a web search hasn’t helped me any, but wasn’t there a French poet who disappeared at the height of his career and was decades later discovered, on his deathbed, to have been living under an assumed name all that time? I know I’ve heard this from a couple of sources, but the only one that comes to mind is the reference made in the movie “Eddie and the Cruisers”…
Possibly Arthur Rimbaud, although he was not popular when he was alive. He wrote all his major poetry between the ages of 15 and 19 and then went to Abyssinia to become a gun runner and (possibly) a slave trader. He fell ill and returned to France. His leg was amputated in Marseille and he died on the journey to Paris at the age of 36 or 37, not knowing that his work had just become the rage of Paris.
There was a movie about his life starring Leonardo DiCaprio, Total Eclipse, I think.
Well for most purposes, to successfully fake your own death one only has to maintain the illusion until you really die. If a body found in some motel turns out to be Jim Morrison then we can safely say he faked his death successfully.
I guess you could tag “that we know of” after the question.