Jean-Baptiste Benoit in the movie Perfume, an actual legend or based on 1?

Not quite sure what you are asking here, if you are asking if Perfume is a legend or based on one the answer is neither, it's based on a novel by Patrick S�skind. The lead character Jean-Baptiste Grenouille is fictitious. Don't remember the name Benoit in the film or book so I am but I think you are referring to Grenouille it's been a while since I read it.