The Daimyo was the ruler of a territory in Mos Espa—a city on the desert planet Tatooine—that was maintained through the allegiance and tribute of vassals, such as government officials and proprietors. The title of Daimyo was held successively by the crime lords Jabba Desilijic Tiure, Bib Fortuna, and Boba Fett.[..]from – Daimyo | Wookieepedia | Fandom
In the aftermath of Fortuna’s death, Fett founded his own criminal empire as the self-proclaimed Daimyo of Mos Espa and Tatooine. Fett accepted payments of tribute and vowed to bring order to the Worker’s District of Mos Espa.