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
Union of the Russian People organisation into several smaller entities, which were in constant conflict with each other: Union of Archangel Michael (), Union of the Russian People (), Dubrovin’s All-Russian Union of the Russian People in Petersburg (), etc. After the February Revolution of 1917, all of the Black-Hundredist organisations were forcefully dissolved and banned. Soon after the February Revolution of 1917, the URP was suspended and its leader Alexander Dubrovin was arrested. The supreme body of URP was called the Main Council (). Its chairman Alexander Dubrovin had two deputies: noble landowner and future Duma Deputy Vladimir Purishkevich and engineer A. I. Trishatny.