Reign of Yury of Moscow
Pereslavl-Zalessky, YaroslavlYury was the oldest son of Daniel, the first prince of Moscow. His first official action was to defend Pereslavl-Zalessky against Grand Duke Andrew III. Upon Andrew's death the next year, Yury had to contend the title of Grand Duke of Vladimir with Mikhail of Tver. While the Tverian army besieged Pereslavl and Moscow itself, Mikhail went to the Golden Horde, where the Khan elevated him to the supreme position among Russian princes.