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Six out of eight members of the first politburo of the Bolshevik Party created in November 1917 – Lev Kamenev, Nikolay Krestinsky, Leon Trotsky, Grigory Zinoviev, Andrei Bubnov, and Grigori Sokolnikov – were killed by Stalin between 1936 and 1941; only Lenin and Stalin himself died natural deaths.
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