Sviatoslav or Svyatoslav I Igorevich was Prince of Kiev from 945 until his death in 972. He is known for his persistent campaigns in the east and south, which precipitated the collapse of two great powers in Eastern Europe, Khazaria and the First... Wikipedia
Born: Kyiv, Ukraine
Parents: Olga of Kyiv and Igor of Kiev
Children: Vladimir the Great, Yaropolk I of Kyiv, and Oleg of Drelinia
Great grandchildren: Vsevolod I of Kiev, Iziaslav I of Kyiv, Sviatoslav II of Kiev, and more
Grandchildren: Yaroslav the Wise, Mstislav of Chernigov, Stanislav, and more
Full name: Sviatoslav I Igorevich