Michał Korybut Wiśniowiecki
Michał Korybut Wiśniowiecki (Vyshnevetsky, Mykhailo), b 31 July 1640, d 10 November 1673 in Lviv. (Portrait: Michał Korybut Wiśniowiecki.) King of Poland in 1669–73; son of Jeremi Wiśniowiecki. He was elected following the abdication of Jan II Casimir Vasa, and he faced considerable pressure to regain the Ukrainian territories lost by Poland in earlier struggles. For that reason he refused to consider Muscovite proposals to make the Treaty of Andrusovo a lasting agreement. In 1672 he faced a joint Cossack-Turkish attack in Right-Bank Ukraine, which resulted in the further ceding of Ukrainian territory under Polish control by the terms of the (never-ratified) Buchach Peace Treaty of 1672. He was succeeded by his rival, Jan III Sobieski. Wiśniowiecki's biography, by N. de Baumgarten, was published in Orientalia Christiana Periodica (1935, no. 1).
[This article originally appeared in the Encyclopedia of Ukraine, vol. 3 (1993).]