 For five years after his father's death, Rostislav who was about 14 years old had no appanage.Finally, his uncles gave him Volhynia and Halych, where he stayed from 1057 and 1064, guarding the western frontier of the Rus' lands.According to Vasily Tatischev, it was there that he married Anna Lanke, the daughter of King Béla I of Hungary.