Portezuelo Castle, also known as Marmionda Castle, is an ancient fortress located in the municipality of Portezuelo, in the province of Cáceres.
The construction of the castle dates back to the 12th century. During this time, the Almohads invaded al-Andalus (1147), putting an end to the Almoravid empire. In 1167, the Christian king of León, Ferdinand II, conquered the castle and gave it to the Knights Templar. However, in 1196, the Almohads recovered it. Finally, in 1213, Alfonso IX of León definitively reconquered it and handed it over to the Order of San Julián del Pereiro, later known as the Order of Alcántara. Throughout its history, the castle underwent various renovations, the 16th century being the last of some importance. Unfortunately, it was abandoned in the second half of the 17th century.