Answer
The answer is "The Five", also known as The Mighty Handful, a group of five Russian composers who worked together in the latter half of the 19th century. They were united by their shared musical ideology and dedication to creating a distinctly Russian form of classical music. The group included Mily Balakirev, César Cui, Modest Mussorgsky, Nikolai Rimsky-Korsakov, and Alexander Borodin.