Oleg of Novgorod
Meanwhile, the Varangians had been exploring along the many rivers of Eastern Europe, trading with the various Slavic tribes that settled there. Their tribal name was, Russ, was given to the state that Oleg of Novgorod would establish when he conquered Kiev and deposed Askold and Dir. This new political entity, called Kievan Rus', was ruled by the Varangian dynasty founded by its first prince, Rurik. This dynasty would rule Kievan Rus' and its numerous principalities years after its downfall and was only replaced in Muscovy by the Romanovs in the 17th century.