Гадячский договор
He opposed hetman Ivan Vyhovsky's Treaty of Hadiach and he led a mutiny that deposed him in 1659. Along with Yakym Somko he secured Left-bank Ukraine and handed it over to Aleksei Trubetskoi. When The Ruin broke out, the hetman of Left-bank Ukraine office was vacant, he had ambitions for the hetmancy, which made him resentful of acting hetman Somko.