Yaroslav the Wise

Yaroslav I Vladimirovich, better known as Yaroslav the Wise, was Grand Prince of Kiev from 1019 until his death in 1054. He was also earlier Prince of Novgorod from 1010 to 1034 and Prince of Rostov from 987 to 1010, uniting the principalities for a time. Yaroslav's baptismal name was George after Saint George.

Yaroslav was a son of Vladimir the Great and Rogneda of Polotsk. Yaroslav ruled the northern lands around Rostov before being transferred to Novgorod in 1010. He had a strained relationship with his father and refused to pay tribute to Kiev in 1014. Following Vladimir's death in 1015, Yaroslav waged a complicated war for the Kievan throne against his half-brother Sviatopolk, ultimately emerging victorious in 1019.