Modest Petrovich Mussorgsky was a Russian composer, one of the group known as "The Five". He was an innovator of Russian music in the Romantic period. He strove to achieve a uniquely Russian musical identity, often in deliberate defiance of the established conventions of Western music.

The Five, also known as the Mighty Handful or The Mighty Five, were five prominent 19th-century Russian composers who worked together to create a distinct national style of classical music: Mily Balakirev, César Cui, Modest Mussorgsky, Nikolai Rimsky-Korsakov and Alexander Borodin. They lived in Saint Petersburg and collaborated from 1856 to 1870.