Maria of Chernigov Princess of Rostov (1212–1271) Parents Helena of Halych Mychailo of Chernigiv Children Gleb Vasilkovich Boris Vasilkovich Siblings Rostislav Mikhailovich Eufrozyna Suzdalská Mstislav Mikhailovich NN Roman Mikhailovich "The Old" Yury Semyon Mikhaylovich Partners Vasilko Konstantinovich
