<prompt> Nyora kupfuurira kweiyi ndima - Vasilko Konstantinovich ; 7 Zvita 1209, muRostov 4 Kurume 1238, muSherensky sango aive wekutanga Muchinda weRostov, Rus . Akanga ari mwanakomana waKonstantine weRostov, uye murume waMaria weChernigov. Akafira muhondo yeRwizi Sit panguva yokupinda kwevaMongol muKievan Rus  <response>: uye akatsiviwa nomwanakomana wake Boris. 