Joseph Legros, often also spelt Le Gros, was a French singer and composer of the 18th century, he is best remembered for his association with which composer of Italian and French opera in the early classical period?
Joseph Legros:  He is best remembered for his association with the composer Christoph Willibald Gluck and is usually regarded as the most prominent "haute-contre" of his generation, though his acting is reputed to have been mediocre. Christoph Willibald Gluck: Christoph Willibald (Ritter von) Gluck (] ; 2 July 1714 – 15 November 1787) was a composer of Italian and French opera in the early classical period.
Christoph Willibald (Ritter von) Gluck