 It was the first congress of the Bolsheviks after their gaining of power in the October Revolution.It was held in the Taurida Palace in Petrograd (St. Petersburg) in extraordinary session to consider the peace treaty with Germany to end World War I, concluded by the Treaty of Brest-Litovsk earlier in March.The 47 plenipotentiary and 59 consultative delegates represented about 17,000 Party members.