Assertion: rurik dynasty | /r/HasProperty | princes of kievan rus
Facets:
Source sentences:
text: Rurik Dynasty, princes of Kievan Rus and, later, Muscovy who, according to tradition, were descendants of the Varangian prince Rurik, who had been invited by the people of Novgorod to rule that city (c. 862); the Rurik princes maintained their control over Kievan Rus and, later, Muscovy until 1598.