I. V. Ryzhov
National Research Lobachevsky State University of Nizhni Novgorod.
Russian Federation

D. Sci. (Hist.), professor, head of the Department of History and Politics of Russia, Institute of International Relations and World History.

2, Ulyanova Str., Nizhny Novgorod, 603005, Russian Federation.

M. Yu. Borodina
National Research Lobachevsky State University of Nizhni Novgorod.
Russian Federation

assistant, Department of History and Politics of Russia, Institute of International Relations and World History.

2, Ulyanova Str., Nizhny Novgorod, 603005, Russian Federation.

F. A. Dorofeev
National Research Lobachevsky State University of Nizhni Novgorod.
Russian Federation

Cand. Sci. (Histю), assistant professor, chair of the history of medieval civilizations, Institute of International Relations and World History.

2, Ulyanova Str., Nizhny Novgorod, 603005, Russian Federation.