<prompt> Qedela umusho olandelayo: UVasilko Konstantinovich ; 7 December 1209, eRostov 4 March 1238, ehlathini laseSherensky wayeyinkosana yokuqala yaseRostov, eRussia. Wayeyindodana kaConstantine waseRostov, futhi engumyeni kaMaria waseChernigov. Washona empini yaseSit River ngesikhathi  <response>: Ukuhlasela kwamaMongol eKievan Rus futhi kwalandelwa indodana yakhe uBoris. 