Rostislav I of Kiev was a 12th-century ruler who held several significant positions, including Prince of Smolensk, Novgorod, and Grand Prince of Kiev. Born around 1110 in Kyiv to Mstislav I and Christina Ingesdotter, he established the Rostislavichi branch of the Rurikid dynasty. His political career was marked by shifting control over major territories, including periods of rule in Novgorod and multiple tenures as the Grand Prince of Kiev.