David Riazanov

David Riazanov or Ryazanov (Russian: Давид Рязанов), born David Borisovich Goldendakh (Russian: Дави́д Бори́сович Гольдендах; 10 March 1870 – 21 January 1938), was a Russian revolutionary, historian, bibliographer, Marxologist and archivist. He had been an old associate of Leon Trotsky. Riazanov founded the Marx–Engels Institute and edited the first large-scale effort to publish the collected works of these two founders of the modern socialist movement. Riazanov was a prominent victim of the Great Terror of the late 1930s.