Dmytro Hunia
From Conservapedia
Dmytro Hunia (Ukrainian: Дмитро Гуня; Polish: Dimitr Hunia) was a hetman of the Ukrainian Kozaks.
He and Yakiv Ostrianyn led a rebellion against the Polish Commonwealth in 1638 which was brutally suppressed. He himself escaped to Russia. Part of the cause of this rebellion was the Polish sejm doing away with the rights and privlages of the Kozaks in 1638.[1]