After the 1917 Russian Revolution and relocation of the capital to Moscow, the Kremlin Senate served as the seat of the Soviet government, including the Politburo. Vladimir Lenin had his study and private apartment on the third floor in 1918-1922.
Following the 1917 Russian Revolution and the shift of the capital to Moscow, the Kremlin Senate functioned as the seat of Soviet government, including the Politburo. Vladimir Lenin resided in his study and private apartment on the third floor between 1918 and 1922.