castellans
Castellans are officials who held the office of castellan, the keeper of a castle and administrator of the surrounding territory. The title derives from Latin castellānus, through Old French castellain, and the associated jurisdiction is known as a castellany or castellation in some regions.
A castellan was typically entrusted with defense and custody of the fortress, command of the garrison, maintenance
Appointment varied by region and period. Castellans were usually appointed by the sovereign or noble who owned
Historical significance and evolution: as centralized states grew and military technology evolved, the responsibilities of castellans