 During the reign of D. Sancho, who sought to expand his authority in the northeastern Tras-os-Montes, Rebordãos was one of the early settlements to receive a charter in order secure Portuguese independence.The site has ""One of the most ample and gorgeous panoramas in the Trás-os-Montes"", providing a link to many of the other fortresses of Bragança, Vimioso, Outeiro, Penas Róias, Miranda and lands along the Douro River, towards Zamora in Spain.Encompassing an elliptical plan, the castle appears to be the result of a campaign of public works during the 13th century.