Title: Zagadka zaveshchanii︠a︡ Ivana Kality
Subjects: History
Places: Velikoe kni͡azhestvo moskovskoe, Russia, Halych (Ukraine), Uglich (Russia), Belozersk (Vologodskai͡a oblastʹ, Russia)
People: Ivan I Grand Prince of Vladimir and Moscow (1304?-1340?)
Time periods: 1237-1480