Tham khảo Ivan_VI_của_Nga

  1. ↑ Директор Института археологии РАН: я не верю в подлинность останков Иоанна VI
  2. ↑ Православие.ру: «Священник спас от уничтожения места возможного захоронения Иоанна VI, инициировав раскопки» (tiếng Nga)
  3. ↑ Detlev Schwennicke, Europaeische Stammtafeln (vol. I.1, table 27, Frankfurt/Main, 1998)
  4. ↑ Marie Tetzlaff: Katarina den stora (1998)
  5. ↑ Massie, Robert K (2012). Catherine the Great: Portrait of a Woman. Usa: Random House Trade Paperbacks. tr. 321.  ||ngày truy cập= cần |url= (trợ giúp)
  6. ↑ Chisholm, Hugh, ed. (1911), Sách đã dẫn, p. 60
  7. ↑ Chisholm, Hugh, ed. (1911), "Anna Leopoldovna", Encyclopædia Britannica, 2 (11th ed.), Cambridge University Press, p. 60
  8. ↑ : Bain, Robert Nisbet (1911). "Osterman, Andrei Ivanovich, Count". In Chisholm, Hugh. Encyclopædia Britannica. 20 (11th ed.). Cambridge University Press. p. 357.
  9. 1 2 3 Moss, Walter (2001), A History of Russia, I, Boston: MacGraw-Hill, pp. 254
  10. ↑ Troyat, Henri (2000), Terrible Tsarinas: Five Russian Women in Power, New York: Algora Publishing, pp. 99
  11. ↑ Moss, Walter (2001), A History of Russia, I, Boston: MacGraw-Hill, pp. 254–255
  12. ↑ Cowles, Virginia (1971), The Romanovs, London: William Collins, pp. 67–68
  13. ↑ Joseph Fitzgerald Molloy. The Russian Court in the Eighteenth Century. Hutchinson, 1905.
  14. ↑ Antonov, Boris (2006). Russian Tsars. Saint Petersburg: Ivan Fiorodov Art Publishers. ISBN 5-93893-109-6, p. 105
  15. ↑ Rounding, Virginia (2007). Catherine The Great. Arrow Books. pp. 184–185.
  16. ↑ Alexander, John T (1989). Catherine the Great: Life and Legend. Oxford University Press.
  17. ↑ Marie Tetzlaff: Katarina den stora (1998)