section_path: History/Russian Orthodox Church in the Russian Empire
section_name: Russian Orthodox Church in the Russian Empire
paragraph_text: Russian Orthodox Church in the Russian Empire
  
  By the time most Orthodox communities came under Muslim rule in the mid 15th century, Orthodoxy was very strong in Russia, which had maintained close cultural and political ties with the Byzantine Empire; roughly two decades after the fall of Constantinople, Ivan III of Russia married Sophia Palaiologina, a niece of the last Byzantine Emperor Constantine XI, and styled himself Tsar ("Caesar") or imperator. In 1547, his grandson Ivan IV, a devout Orthodox Christian, cemented the title as "Tsar of All Rus", establishing Russia's first centralised state with divinely appointed rulers. In 1589, the Patriarchate of Constantinople granted autocephalous status to Moscow, the capital of what was now the largest Orthodox Christian polity; the city thereafter referred to itself as the Third Rome — the cultural and religious heir of Constantinople.
  
  Until 1666, when Patriarch Nikon was deposed by the tsar, the Russian Orthodox Church had been independent of the State. In 1721, the first Russian Emperor, Peter I, abolished completely the patriarchate and effectively made the church a department of the government, ruled by a most holy synod composed of senior bishops and lay bureaucrats appointed by the Emperor himself. Over time, Imperial Russia would style itself a protector and patron of all Orthodox Christians, especially those within the Ottoman Empire.
  
  For nearly 200 years, until the Bolsheviks ' October Revolution of 1917, the Russian Orthodox Church remained, in effect, a governmental agency and an instrument of tsarist rule. It was used to varying degrees in imperial campaigns of Russification, and was even allowed to levy taxes on peasants. The church's close ties with the state came to a head under Nicholas I (1825–1855), who explicitly made Orthodoxy a core doctrine of imperial unity and legitimacy. The Orthodox faith became further tied to Russian identity and nationalism, while the church was further subordinated to the interests of the state. Consequently, Russian Orthodox Church, along with the imperial regime to which it belonged, came to be presented as an enemy of the people by the Bolsheviks and other Russian revolutionaries.