Along with Ruthenians, these people would have been elevated to create a commonwealth of three nations in the unsuccessful Treaty of Hadiach (“HAHD-yutch”). A group of these people legendarily referred to Sultan Mehmed IV as “an attendant of Lucifer” (10[1])in an insulting letter known as their “reply.” (-5[1])An (10[1])ataman of these people sacked Kazan during a rebellion that occurred during Catherine the Great’s reign. Yemelyan (10[1])Pugachev (“ye-MEAL-yan POO-ga-chev”) and Ivan (-5[1])Mazepa were leaders of these people, who lived in groups (10[1])called hosts and chiefly lived near the Dnieper and Don rivers. (10[2]-5[1])For 10 points, name these militaristic, nomadic horsemen (10[1])that lived in Ukraine and Russia. (10[2])■END■ (10[1]0[2])