As in several villages in the Algarve, Loulé also accuses the presence of various peoples: Phoenicians, Carthaginians, Romans and Moors, who took over the city in 715. The Christian reconquest took place in 1249 and in 1268 the fortress was rebuilt and expanded, being rebuilt in the 16th century. Currently, there are some remains on Rua da Barbacã, Largo da Matriz and Rua Rainha Dona Leonor.

Classified as a national monument in 1978, the castle which dominates the historical village of Marialva from the top of a cliff probably date from the 12th century or early 13th century, when King Sancho I promoted the settlement of the region. In 1286, King Denis set up one of the many fairs created during his reign, and should date from this period the oval configuration of walls that surround the village, characteristic of the Gothic city perimeter of fortified villages nationals from the late Middle Ages. Although quite ruined, retain their original layout and it is still possible to …

Imposing defensive complex situated in a place of great scenic beauty. Most of the buildings of the castle dating back to 1226 and 1230. Was modified and enlarged in the 15th, 16th and 17th. In the reign of King Dinis built ramparts, walls and fortresses. The reconstruction remain the keep and some cloths of wall.

Melgaço Castle currently consists of an imposing keep - with three floors, a parapet protruding over corbels, crowned by pyramidal merlons and with a hipped tile roof - and the surrounding walled enclosure, in a good state of conservation. It is believed that it may have had 3 towers and two doors, according to Duarte de Armas in his “Livro das Fortalezas” (Book of Fortresses) from 1509. The current tower houses the Melgaço Keep Tower Museum.

This castle, left only a few traces. The castle is visible the door de Santo António, formed by two thick walls, on which rests a bow with broken clipping the outside and back perfect at interior. On the door, there are traces of primitive adarve, currently transformed into terrace housing. There are also small sections of wall.

The castle of Mogadouro was donated by D. Afonso Henriques to the Templars and, a few years later, passed to the Order of Christ, its successor. Today, only two sections of walls remain, an isolated tower with rectangular faces and some scarce remains of carved walls.

This castle, also known as Castle of San Antonio, located 825 m altitude and belongs, together with the Castle and St. Stephen, the defense of the Valley of keys. Was sent by Dom Dinis built in the 13th century, probably about traces of a Roman castro. In this walled enclosure that surrounded the village, there are still some traces. Of the four original towers remains only a donjon. Are also some remains of the ancient Citadel, where he opens a large lounge homeless, surrounded by granite walls.

Montalegre Castle represents an important point of border defense and ensured, along with the castles of Piconha and Keys, the defenses of the valleys of the Cávado and Tâmega. In 1273, the year of the first Charter granted the Montalegre by Dom Afonso III, the Castle did not yet exist, but in 1281, at least a part of it already stood in Montalegre, according a letter from d. Dinis d. Isabel. In the letter the King offered twelve castles, among which that of Montalegre. In 1289-1331, during the reign of d. Afonso IV, the castle is rebuilt. In the 19th …

Located on a limestone elevation, this castle has a keep dating from the time of Dom Dinis, which stands out for its volume. It was after the reconquest from the Moors that King Dinis had the castle completely remodeled, which had housed the Moors for 400 years. Later, King João I ordered the fortress to be expanded, but the War of Succession and the 1755 earthquake contributed to its state of ruin. On the southeast side there is an elbow-shaped entrance portal and a vaulted tunnel. Next to the castle there are ruins of the Convent of the Dominican Nuns …

The walls and towers remain from the 17th century fortifications to this day. The consistent medieval wall is made of marble and granite and is torn by several doors. It has a triangular plan with square towers. Inside the walls, the Casa da Guarda and the old Town Hall stand out. The military complex retains, despite being quite damaged, a unique and picturesque appearance.