The Principality of Yaroslavl was an eastern Slavic principality, which existed in 1218—1463. Its first independent prince was Vsyevolod Konstantinovich, who died fighting the Mongols on the Siti river, March 4th 1238. Yaroslavl had been sacked in February. His son Vasilii took over briefly before a group of princes decided Vasilii's son-in-law should be ruler: Fedor Rostislavich Cherni, son of the ruler of Smolensk. His second wife was daughter to the warlord Nogai. In 1332 Ivan I of Moscow burnt down Yaroslavl under the Khan's orders. Then he forced the prince, Vasilii Davidovich Groznii to marry his daughter Yevdokia. Vasilii tried to be independent, adopting the title Grand prince and allying with Tver but the Khan ordered him to stay loyal to Moscow. The last Grand Prince of Yaroslavl was Aleksandr Fedorovich Brukhatii who was forced to sign away the succession to Ivan III. [1] Having emerged from the Principality of Rostov, in 14th-15th centuries it dissipated into udels[1] and was ultimately incorporated into Grand Duchy of Moscow.