Ivan I of Moscow

Iván I Danilovich Kalitá (Russian: Ива́н I Данилович Калита́; 1 November 1288 – 31 March 1340 or 1341) was Grand Prince of Moscow from 1325 to at least 1340, and Grand Duke of Vladimir from 1332 until at least 1340. Biography Ivan was the son of the Prince of Moscow Daniil Aleksandrovich. After the death of his elder brother Yury, Ivan inherited the Principality of Moscow. Ivan participated in the struggle to get the title of Grand Duke of Vladimir which could be obtained with the approval of a khan of the Golden Horde. The main rivals of the princes of Moscow in this struggle were the princes of Tver – Mikhail, Dmitry the Terrible Eyes, and Alexander II, all of whom obtained the title of Grand Duke of Vladimir and were deprived of it. All of them were murdered in the Golden Horde. In 1328 Ivan Kalita received the approval of khan Muhammad Ozbeg to become the Grand Duke of Vladimir with the right to collect taxes from all Rus' lands.