Cochise (/koʊˈtʃiːs/; Cheis or A-da-tli-chi, in Apache K'uu-ch'ish "oak"; c. 1805 – June 8, 1874) was leader of the Chihuicahui local group of the Chokonen ("central" or "real" Chiricahua) and principal chief (or nantan) of the Chokonen band of the Chiricahua Apache. He led an uprising against the American government that began in 1861. Cochise County, Arizona is named after him.