David Riazanov, Russian theorist and politician (d. 1938)
David Riazanov (Russian: Дави́д Ряза́нов), born David Borisovich Goldendakh (Russian: Дави́д Бори́сович Гольдендах; 10 March 1870 – 21 January 1938), was a Russian revolutionary, historian, bibliographer and archivist. Riazanov is best remembered as the founder of the Marx–Engels Institute and editor of the first large-scale effort to publish the collected works of these two founders of the modern socialist movement. Riazanov is also remembered as a prominent victim of the Great Terror of the late 1930s.