Anton Grigoryevich Rubinstein was a Russian pianist, composer and conductor who became a pivotal figure in Russian culture when he founded the Saint Petersburg Conservatory. He was the elder brother of Nikolai Rubinstein who founded the Moscow Conservatory. As a pianist, Rubinstein ranks among the great 19th-century keyboard virtuosos. He became most famous for his series of historical recitals—seven enormous, consecutive concerts covering the history of piano music. Rubinstein played this series throughout Russia and Eastern Europe and in the United States. Rubinstein was also a prolific composer throughout much of his life. He wrote 20 operas, the best known of which is "The Demon".