During the reign of Yaroslav the Wise, (1019–1054), Rus reached the zenith of its cultural development and military power. Rus raised the prestige of Eastern Slavs in Europe, improved the international significance of Kyiv. Rus influenced the political relations in all of Europe, Western Asia, and in the Middle East. Kyivan princes supported the political, economic, dynastic relations with France, Sweden, England, Poland, Hungary, Norway, Byzantium.