Yaroslav I, Grand Prince of Rus', known as
Yaroslav the Wise or
Iaroslav the Wise (,
Jaroslavu Volodimirovicu Modryi; ; ,
Yaroslav Mudry; ; c. 978 – 20 February 1054) was thrice
grand prince of
Veliky Novgorod and
Kiev, uniting the two principalities for a time under his rule. Yaroslav's Christian name was George (
Yuri) after
Saint George (,
Gjurigì).