Igor, Grand Prince (kievan rus) : All Data
Igor was the Grand Prince of Kievan Rus' from 914 to 945. During his reign, he faced several significant conflicts, including the Rus'-Byzantine War of 941-944. This war, which took place within Igor's reign, saw the Kievan Rus' forces led by Igor himself launching multiple unsuccessful campaigns against the Byzantine Empire. The war resulted in a peace treaty in 944, marking the end of hostilities between the two powers. Additionally, Igor faced internal revolts and conflicts within his realm, but specific details and years of these events are not provided.