Mértola

Castle • Mértola, Beja

On the rocky height where the Oeiras stream meets the Guadiana, Mértola Castle preserves the defensive memory of a town shaped by the river. The beginnings of the fortification belong to the Islamic period, when Mértola was an important river port between Mérida and the Atlantic. In 1238, the knights of Santiago conquered the city and chose it as the seat of the Order in Portugal, a status it kept until 1316. The castle’s Gothic work is generally dated to 1292, the year inscribed on the Keep, built under the patronage of D. João Fernandes, master of Santiago. The fortress has a quadrangular, slightly trapezoidal plan, with towers at the corners, and the Keep rises to almost 30 metres. In the alcazaba, excavations begun in 1978 revealed a Late Medieval necropolis, an Islamic quarter and a palaeo-Christian religious complex. The castle has been a National Monument since 1951.