In La Vall de Gallinera there are remains of six fortifications belonging to the Muslim era: the Almiserà fort, the Gallinera Castle, the Alcalà Castle, the Castellot next to Alpatró, the tower of La Foradada and the Llimener turret. Not all, however, were built at the same time, nor did their construction have the same goals.
The administrative organisation of the area revolved around the two main castles, Gallinera and Alcalà, each of which had a district under its control and Muslim farmhouses that paid their taxes in kind or in cash. Therefore, the territory of the valley was divided according to the limits of the two castles’ administrative powers. This territorial organisation still endured during the early days of the Christian era. In fact, when the Christian monarchs donated the castles and their lands, thus turning them into manors, they did it respecting the boundaries of the Muslim districts.