Oleg of Novgorod

Prince (or konung) Oleg (Slavic: Олег, Old Norse: Helgi, Khazarian, possibly Helgu) was a Varangian ruler who moved the capital of Rus from Novgorod the Great to Kiev and, in doing so, founded the powerful state of Kievan Rus. According to East Slavic chronicles, he was a supreme ruler from 882 to 912, which dates do not comply with the Schechter Letter mentioning the activities of certain khagan HLGW of Rus in the 940s.