Jefe

Antonio Rivera Cabezas was chosen vice-jefe in March 1830.

Source: wiktionary

before he stepped forward uttering the stereotyped greeting, the Texan had put him down as the jefe or head man.... Snatching up the rifle he lit out after the jefe, who had left two jumps ahead of the smoke.

Source: wiktionary

Hilario Saño, a suspect, resident here but much doubted by the jefe local, was put to the test

Source: wiktionary

“They ain’t going to deliver the cattle across.... They’ve taken too much of a beating as it is. They’ve lost their big jefe and lots of men.”

Source: wiktionary