Bey

The Turkish governor of a district or province.

"In Tunis, direct Ottoman rule lasted for an even shorter time. Before the end of the sixteenth century the lower officers of the janissaries revolted, formed a council, and elected a leader (dey) who shared power with the governor. In the middle of the seventeenth century a third person, the bey who commanded the janissary corps which collected rural taxes, seized a share of the power; at the beginning of the eighteenth century, one of them was able to found a dynasty of beys, the Husaynids."

Albert Hourani, A History of the Arab Peoples (1991).