an Entity references as follows:
Ivan Ivanovich Dzerzhinsky (Russian: Иван Иванович Дзержинский; 9 April 1909 (O. S 27 March)–18 January 1978) was a Russian composer. The work for which he best known, his opera Quiet Flows the Don (Tikhiy Don), was more successful for its political potential than for any musical distinction.