[1] Archaeological excavations revealed vestiges of human occupation in the place since the Calcolithic Age, that included the alcáçova and northern spaces.

[1] On 6 December 1253, King D. Alfonso X of Castile (the Wise) conceded forals (charters) to Noudar, Arouche, Aracena, Moura and Serpa.

During D. Afonso X's battle with his successor, the prince D. Sancho, D. Beatriz placed the lands and forces under the disposal of her father's armies, but they were eventually defeated by partisans loyal to the Infant.

[1] Quickly, on 16 December 1295, Denis signed a new foral for Noudar, but eventually he would donate the lands to the Order of Aviz (on 25 November 1307), this following his determination that the nuns and master D. Lourenço Afonso promoted the settlement of the region with the construction of a castle, wall and fortress.

[1] Between 3 March 1307 and 11 April 1311, D. Aires Afonso occupied the position of Commander of the Order of Avis and promoted work on the castle (from an inscription located today in the municipal hall of Barrancos.

[1][3] On 26 April 1319, in a letter from D. Dinis to D. Gil Martins, master of the Order, the King nullified his debts for the construction of the castles of Noudar, Veiros and Alandroal.

[1] In the 16th century, the parochial church, to the invocation of Nossa Senhora de Entre Ambas as Águas (Our Lady of Between Both Waters), evoking its position between the ravine of Murtéga and the Ardila River that embraced the east and west of the village.

[1] Until the 18th century, the village was the seat of the municipality, but the preceding years of strife and depopulation resulted in the transfer of the administration to the neighbour town of Barrancos.

[1] A plan for the redesign of the military square of Noudar made in 1755 by Miguel Luiz Jacob, identified the location of a star-shaped redoubt that was projected to be constructed along the wall of São Gens, along southeast, which was never built.

[1] Writing in 1909, Gustavo de Matos Sequeira referred to two inscriptions located in the keep tower, one that was previously stored in the Herdade da Coitadinha.

However, on 25 June 1997, a promissory contract was signed to purchase the castle by José Augusto Fialho in the Câmara Municipal de Barrancos.

[1] The castle is situated in an isolated, rural landscape on the extreme western edge of the Herdade da Coitadinha, implanted on a schist platform, crowning a 275 metres (902 ft) hilltop.

[1] Within the circus is the Church of Nossa Senhora do Desterro (Our Lady of Exile) and about 200 metres (660 ft) from the castle is the Atalaia da Forca.

[1] The irregular plan is oriented longitudinally northwest to southeast, that integrates the trapezoidal castle wherein northwestern wall is located the keep tower.

[1] The first was a commemorative inscription for the construction of the castle of Noudar, sculpted into stone, in Gothic scribe, later registered by Gustavo de Matos Sequeira:[1] Another inscription commemorated the work on the castle during the commandery of D. Aires Afonso, inscribed on ashlar, that included a flourished, cross of the Order of Avis accompanied by two birds and two fruits, a scallop and old shield of Portugal, with the epigraphy was delimited above and the sides.