11th October 1863
2nd February 1919
Xavier Henry Napoleón Leroux was a French composer. The son of a military bandleader, he studied at the Paris Conservatory under Jules Massenet and Théodore Dubois, and won the Prix de Rome in 1885 with the cantata Endymion. From 1896 he taught harmony there. Notable students include composer Marc Delmas. Leroux composed several orchestral and choral works, songs, and piano pieces, but he was primarily known for his operas.