Yaroslav the Wise

Yaroslav I Vladimirovich (c. 978 – 20 February 1054), 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.

As the Grand Prince of Kiev, Yaroslav focused on foreign policy, forming alliances with Scandinavian countries and weakening Byzantine influence on Kiev. He successfully captured the area around present-day Tartu, Estonia, establishing the fort of Yuryev, and forced nearby regions to pay tribute. Yaroslav also defended his state against nomadic tribes such as the Pechenegs by constructing a line of forts. He was a patron of literary culture, sponsoring the construction of Saint Sophia Cathedral in 1037 and promoting the first work of Old East Slavic literature by Hilarion of Kiev.

Yaroslav married Ingegerd Olofsdotter in 1019. Several of their daughters married into foreign royal families, while their sons went on to rule various parts of Kievan Rus'. Yaroslav was known for promoting unity among his children and emphasizing the importance of living in peace. After his death, his body was placed in a sarcophagus within Saint Sophia's Cathedral, but his remains were later lost or stolen. Yaroslav's legacy includes founding several towns and having numerous monuments and institutions named after him.