Boris Vasilkovich, Duke of ROSTOV
He married Mariya Yaroslavna, Princess of Murom 1248 at Muram, Vladimir, Russia . Mariya Yaroslavna, Princess of Murom was born at of Muram, Vladimir, Russia Abt 1232 daughter of Yaroslav Yurevich, Duke of Murom and Mrs-Yaroslav Yurevich Duchess of Murom .
They were the parents of 4
children:
Dmitrij Borisovich, Duke of Rostov and Uglich
born 11 Sep 1253.
Konstanin II Borisovich, Duke of Uglich
born 30 Jun 1255.
Borisovna, Princess of Rostov
born Abt 1260.
Vasilij Borisovich, Prince of Rostov
born 16 Apr 1268.
Boris Vasilkovich, Duke of Rostov died 16 Sep 1277 .
Mariya Yaroslavna, Princess of Murom died 1297 .