Castle of Alcácer do Sal

The Castle of Alcácer do Sal is a medieval fortification perched on a hillside with rectangular merlons, linked towers, and a cloister overlooking the Sado River and farmland beyond. The complex has been converted into a functioning hotel while preserving its original architectural features and layout.

The castle was constructed in the 12th century and captured by King Afonso II in 1217, after which it was granted to the Military Order of Santiago. This transfer marked a significant shift in regional control and governance.

The castle reflects the transition from Almohad rule to Portuguese control through its building style and the layered construction of its walls. Visitors can see these different periods in how the rooms and fortifications are arranged throughout the structure.

The elevated hilltop location offers good views from many angles and is straightforward to walk around and explore on foot. Since the site operates as a working hotel, visitors should be aware of guest areas and respect the spaces reserved for accommodation.

Within the castle walls stands the Church of Santa Maria do Castelo, featuring an unusual double choir and rectangular nave tucked within the courtyard. This sacred space embedded inside the military compound is a rare example of how religious and defensive functions coexisted here.