in Pskov, the Army Chief Nikolai Ruzsky, and the Duma deputies Alexander Guchkov and Vasily Shulgin suggested in unison that he abdicate the throne. He did so on , on behalf of himself, and then, having taken advice on behalf of his son, the Tsarevich. Nicholas nominated his brother, the Grand Duke Michael Alexandrovich, to succeed him. But the Grand Duke realised that he would have little support as ruler, so he declined the crown on , stating that he would take it only if that was the consensus of democratic action. Six days later, Nicholas, no longer Tsar and addressed with contempt by the sentries as "Nicholas Romanov", was reunited with his family at the Alexander Palace at Tsarskoye Selo. He was placed under house arrest with his family by the Provisional Government. The immediate effect of the February Revolution was a widespread atmosphere of elation and excitement in Petrograd. On , a provisional government was announced. The center-left was well represented, and the government was initially chaired by a liberal aristocrat, Prince Georgy Yevgenievich Lvov, a member of the Constitutional Democratic Party (KD). The socialists had formed their rival body, the Petrograd Soviet (or workers' council) four days earlier. The Petrograd Soviet and the Provisional Government competed for power over Russia. Dvoyevlastiye The effective power of the Provisional Government was challenged by the authority of an institution that claimed to represent the will of workers and soldiers and could, in fact, mobilize and control these groups during the early months of the revolution – the Petrograd Soviet Council of Workers' Deputies. The model for the Soviets were workers' councils that had been established in scores of Russian cities during the 1905 Revolution. In February 1917, striking workers elected deputies to represent them and socialist activists began organizing a citywide council to unite these deputies with representatives of the socialist parties. On 27 February, socialist Duma deputies, mainly Mensheviks and Socialist Revolutionaries, took the lead in organizing a citywide council. The Petrograd Soviet met in the Tauride Palace, the same building where the new government was taking shape. The leaders of the Petrograd Soviet believed that they represented particular classes of the population, not the whole nation. They also believed Russia was not ready for socialism. They viewed their role as limited to pressuring hesitant "bourgeoisie" to rule and to introduce extensive democratic reforms in Russia (the replacement of