Russian pianist, composer and conductor.
Anton Grigorevich Rubinstein was a Russian pianist, composer and conductor who became a pivotal figure in Russian culture when he founded the Saint Petersburg Conservatory.
Sources:
1.) Philip S. Taylor (2007). Anton Rubinstein: A Life in Music. Indiana University Press. p. 280. ISBN 9780253116758. "In the ecclesiastical and religious sense I am an atheist, but I am convinced that it would be a misfortune if people had no religion, no church, no God."