
Trivia: When Quasimodo is singing a few minutes into the film, he is standing above the town street where people are walking around, doing business. If you look closely to the lower right of the scene, you can see Belle from "Beauty and the Beast" reading a book in her blue dress, walking.
Answer: That's a good question. France actually fought no wars between the Battle of Castillon in 1451, and the Italian Wars which began in 1494. Seeing as the movie takes place in 1482 it seems strange that Phoebus would have fought in any war, unless he is at least 45 years old.