Sorry guys. I was in slow motion mode for almost a week.
To sum up this secondary quizz:
Charles Bovari of Nice is corerectly written with a "i" on every source I find.
Charles Bovary, the character played by Van Heflin, is correctly spelled with a "y", in the 1949 film and the original book it was adapted from (I didn't refer to any serbian, latvian or whatever adaptation or accidental misspelling).
Except in one occasion. Which one? The answer can be found ont the internet, but not only.
Open to all PAFW.