Lev Borisovich Kamenev (1883 - 1936); Bolshevik revolutionary and a prominent Soviet politician. He was one of the seven members of the first Politburo, founded in 1917 to manage the Bolshevik Revolution: Lenin, Zinoviev, Kamenev, Trotsky, Stalin, Sokolnikov and Bubnov. Kamenev was the brother-in-law of Leon Trotsky. He served briefly as the equivalent of the first head of state of Soviet Russia in 1917, and from 1923-24 as acting Premier in the last year of Vladimir Lenin's life. Stalin had him executed on 25 August 1936, aged 53, after a brief show trial during the period of the Great Purges.