Vladimir I Sviatoslavich or Volodymyr I Sviatoslavych (Old East Slavic: Володимѣръ Свѧтославичь, Volodiměrъ Svętoslavičь;[a][b] c. 958 – 15 July 1015), nicknamed the Great, was Prince of Novgorod, Grand Prince of Kiev, and ruler of Kievan Rus´ from 980 to 1015.[10]
Vladimir´s father was Prince Sviatoslav I of Kiev of the Rurik dynasty.[11] After the death of his father in 972, Vladimir, who was then prince of Novgorod, was forced to flee to Scandinavia in 976 after his brother Yaropolk murdered his other brother Oleg of Drelinia, becoming the sole ruler of Rus´. In Sweden, with the help of his relative Ladejarl Håkon Sigurdsson, ruler of Norway, he assembled a Varangian army and reconquered Novgorod from Yaropolk.[12] By 980, Vladimir had consolidated the Rus´ realm to the Baltic Sea and had solidified the frontiers against incursions of Bulgarians, Baltic tribes and Eastern nomads. Originally a follower of Slavic paganism, Vladimir converted to Christianity in 988[13][14][15] and Christianized the Kievan Rus´.[11] Due to this act, which fundamentally altered the historical trajectory of the Rus´ and led to his declaration as a saint in both Western Christianity and the Eastern Orthodox Church, Vladimir is thus also known as Saint Vladimir. Some scholars prefer Volodimer I,[16][17][18] or Volodimir I.[19]
