Iziaslav I of Kiev
…Casimir to Dobronega, Yaroslav's sister; and Iziaslav to Gertrude, Casimir's sister. From this marriage were born three children: Yaropolk, Mstislav and Sviatopolk. From 1045 to 1052, Iziaslav reigned as Prince of Turov. Upon the death of Yaroslav the Wise in 1054, his realm was divided between three of his older…