Science Fair Project Encyclopedia
As a result of a long struggle, Mikhail Yaroslavich became the Grand Prince of Vladimir in 1305 and the first among Russian princes to have the title of the Grand Prince of all Rus . In 1317, Uzbeg Khan of the Golden Horde gave the title of the Grand Prince of Vladimir to Yuri Danilovich, Prince of Moscow, and sent his army to help Yuri in his struggle with Mikhail Yaroslavich. On December 22, 1317 Mikhail defeated Yuri at a village called Bortenevo (40 km from Tver). Later on, Mikhail was summoned by the Khan and had to go to the Horde to "explain" himself. He was eventually killed in the Horde by Yuri's servants.
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