House of Romanov (1881–1894), and Nicholas II (1894–1917). Constantine Pavlovich and Michael Alexandrovich, both morganatically married, are occasionally counted among Russia's emperors by historians who observe that the Russian monarchy did not legally permit interregnums. But neither was crowned and both actively declined the throne. The February Revolution of 1917 resulted in the abdication of Nicholas II in favor of his brother Grand Duke Michael Alexandrovich. The latter declined to accept imperial authority save to delegate it to the Provisional Government pending a future democratic referendum, effectively terminating the Romanov dynasty's rule over Russia. After the February Revolution, Nicholas II and his family
Russian Revolution body, the Petrograd Soviet (or workers' council) four days earlier. The Petrograd Soviet and the Provisional Government competed for power over Russia. 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