Completed the following sentence: In 1677, the Turkish sultan proclaimed Yuri Khmelnytsky a successor to Doroshenko, and invaded the right bank and laid siege to its capital, Chyhyryn. In 1677, the Turkish sultan proclaimed Yuri Khmelnytsky a successor to Doroshenko, and invaded the right bank and laid siege to its capital, Chyhyryn. Although Samoylovych and Romodanovsky were generally successful in
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