Iziaslav II Mstislavich was Grand Prince of Kiev (1146–1154). He was also Prince of Pereyaslavl, Prince of Turov (1132–1134), Prince of Rostov (1134–), and Prince of Volhynia (1134–1142). He is the founder of the Iziaslavichi branch of Rurikid princes in Volhynia.