Yaroslav the Wise, Grand Prince (kievan rus) : All Data

Yaroslav the Wise was the Grand Prince of Kievan Rus' from 1019 to 1054. During his reign, he successfully defended his realm against external threats and expanded its influence. One of the most significant wars that occurred during his tenure was the Battle of Listven in 1024, where Yaroslav defeated the Poles and secured his southern borders. Another notable conflict was the Rus'-Byzantine War of 1043-1044, in which Yaroslav led his forces against the Byzantine Empire to protect his trade interests and secure favorable treaties. Yaroslav's military successes and diplomatic prowess solidified Kievan Rus' as a powerful and respected state in Eastern Europe.