Complex sentence: Born Adolphe Jean-Marie Mouron in Kharkov, Ukraine, to French parents, as a young man, Cassandre moved to Paris, where he studied at the École des Beaux-Arts and at the Académie Julian.
Split into simpler sentences: Born Adolphe Jean-Marie Mouron in Kharkov, Ukraine, to French parents. As a young man, Cassandre moved to Paris, where he studied at the École des Beaux-Arts and at the Académie Julian.