Complex sentence: Eventually her parents agreed to let her study painting and because she was fluent in French, they sent her to Paris where she studied acting at the Comédie-Française and art at the prestigious Académie Julian.
Split into simpler sentences: Eventually her parents agreed to let her study painting. Because she was fluent in French, they sent her to Paris, where she studied acting at the Comédie-Française and art at the prestigious Académie Julian.