Léonce de Saint-Martin was a French composer and pianist who was active in the late 19th and early 20th centuries. He was born in 1853 in Rouen, France, and began studying music at a young age. He later studied at the Paris Conservatoire, where he won a number of prizes for his compositions.

Saint-Martin composed a wide range of music, including symphonies, chamber music, and piano works. He was particularly well known for his piano music, which was highly virtuosic and demanding. He also composed a number of operas, including “La Chanson de l’Oiseau” and “Les Amours de la Reine Élisabeth.” Saint-Martin died in 1924 at the age of 71.