Compact of Zborów

But neither the Treaty of Zboriv (August 1649) nor a less favourable agreement two years later proved acceptable—either to the Polish nobility or to the Cossack rank and file and the radicalized masses on the Ukrainian side.

…victories, the Cossacks exacted the Compact of Zborów (1649) from the Polish king.

…king John Casimir, concluding the Compact of Zborów (Aug. 18, 1649); its terms permitted him to establish a virtually independent Cossack principality in Ukraine. The treaty satisfied neither the Polish gentry nor Khmelnytsky’s followers, many of whom remained subject to Polish landlords; therefore, he renewed the war in the spring…