Castle of Castro Marim

The Castle of Castro Marim was part of the defensive line controlled by the Knights Templar, a stronghold used during the Portuguese Reconquista, and adapted during the Restoration War to defend the frontier.
The castle is located in a unique landscape due to the proximity of salt and mouth of the Guadiana River. Within the castle fortification are two epigraphic inscriptions: one, the first to record a settlement established by a Portuguese monarch, while the second carving identifies the alterations occurring under the reign of King Denis.