The Tsar of all Russia,[1] officially the Sovereign, Tsar and Grand Prince of all Russia,[a][b][2][3][4] was the title of the Russian monarch from 1547 to 1721. During this period, the state was a tsardom.[5][6]
^Bushkovitch, Paul (2021). Succession to the throne in early modern Russia : the transfer of power 1450-1725. Cambridge, United Kingdom. p. 110. ISBN9781108479349.{{cite book}}: CS1 maint: location missing publisher (link)
^Isoaho, Mari (2006). The Image of Aleksandr Nevskiy in medieval Russia: warrior and saint. Leiden: Brill. p. 25. ISBN9789047409496.
^Filjushkin, Alexander (2008). Ivan the Terrible : a military history. London. ISBN9781848325043.{{cite book}}: CS1 maint: location missing publisher (link)
^Payne, Robert (2002). Ivan the Terrible (1st Cooper Square Press ed.). New York: Cooper Square Press. pp. 24–25. ISBN9780815412298.
^Payne, Robert (2002). Ivan the Terrible (1st Cooper Square Press ed.). New York: Cooper Square Press. p. 67. ISBN9781461661085.
^Perrie, Maureen; Lieven, D. C. B.; Suny, Ronald Grigor (2006). The Cambridge history of Russia. Cambridge. p. 496. ISBN9780521815291.{{cite book}}: CS1 maint: location missing publisher (link)
^Harcave, Sidney (2004). Count Sergei Witte and the twilight of imperial Russia : a biography. Armonk, N.Y.: M.E. Sharpe. p. 41. ISBN9781317473756.
^Feldbrugge, F. J. M. (2017). A history of Russian law: from ancient times to the Council Code (Ulozhenie) of Tsar Aleksei Mikhailovich of 1649. Leiden. p. 777. ISBN9789004352148.{{cite book}}: CS1 maint: location missing publisher (link)
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