Rogneda gave him several children. The four sons were Yaroslav the Wise (though some accounts suggest he may have been the son of Anna Prophyrogeneta), Vsevolod, Mstislav of Chernigov, and Izyaslav of Polotsk. She also bore two daughters, one of whom is named by Nestor the Chronicler as Predslava (taken as a concubine of Boleslaus I of Poland, according to Gallus). A later chronicle tells a story, most likely taken from a Norse saga, of Rogneda plotting against Vladimir and asking her elder son, Izyaslav, to kill him. As was the Norse royal custom, she was sent with her elder son to govern the land of her parents, i.e. Polotsk. Izyaslav's line continued to rule Polotsk and the newly found town of Izyaslavl, now called Zaslawye.