A film that has similar elements to the Hunchback is the 1996 movie KamaSutra; A Tale of Love. And yes it an Erotic drama period piece.
First off, It’s an about a young women names Maya (Indira Varma) who has studied dancing. We have a young beautiful dancer, though Maya isn’t the prude as Esmeralda is.
Second, we have a Hunchback who is not too good this the ladies. The Hunchback who is a prince in this movie. Is in love with Maya. He is no where near as devote as Quasimodo.
Third, we have two guys in love with Maya (in addition to the Hunchback prince). One is an artist who loves her more in a human way.
The other is King who is obsessed with her. He even says his mood depend solely on her, which is true. When she rejects him even though she is his courtesan he get depressed and more dependent on opium. He is where near as complex or as interesting as Frollo.
These similarities are coincidental and I highly doubt that KamaSutra; A Tale of Love was even remotely influenced by Hunchback but still the similar elements are striking.
KamaSutra; A Tale of Love isn’t the greatest movie in the world but it’s pretty and enjoyable.