Vasilko Konstantinovich was the first Prince of Rostov. He was the son of Konstantin of Rostov, and the spouse of Maria of Chernigov. He died in the battle of the Sit River during the Mongol invasion of Kievan Rus' and was succeeded by his son... Wikipedia
Born: December 7, 1208, Rostov, Russia
Died: March 4, 1238 (age 29 years), Šerenský les
Children: Boris Vasilkovich and Gleb Vasilkovich
Grandchildren: Dmitry Borisovich, Konstantin Borisovich, Mikhail Glebovich, and more
Grandparents: Vsevolod the Big Nest, Maria Shvarnovna, and Mstislav III of Kiev
Great grandchildren: Vasili Konstantinovich of Polotsk, Ivan Dmitrievich of Pereyaslavl, Anna of Kashin, and more
Great-grandparents: Yuri Dolgorukiy, Roman I of Kiev, and Helena