Hector Berlioz (11 December 1803 – 8 March 1869) French Romantic composer

Famous for his innovative orchestration and contributions to Romantic music. His groundbreaking work Symphonie Fantastique revolutionized programmatic music with its vivid storytelling and dynamic orchestration.

Berlioz expanded the possibilities of the orchestra and certainly influenced later composers  Wagner and Mahler.  Renowned for his operatic masterpiece Les Troyens, Berlioz's passionate conducting and influential writings established him as a key figure in the development of 19th-century music.