The Krivichs, or Kryvichs, were a tribal union of Early East Slavs between the 6th and the 12th centuries. It is suggested that originally the Krivichi were native to the area around Pskov. They migrated to the mostly Finnic areas in the upper reaches of the Volga, Dnieper, Dvina, areas south of the lower reaches of river Velikaya and parts of the Neman basin.