Portugal–Spain border Portugal–Spain border The Portugal–Spain border is the international boundary between Portugal and Spain. Referred to as "la Raya" in Spanish and "A Raia" in Portuguese (the stripe), the current demarcation is almost identical to that defined in 1297 by the Treaty of Alcañices. It is one of the oldest borders in the world. The Portugal–Spain border is 1,214 km (754 miles) long and considered the longest uninterrupted border within the European Union. The border is not defined for 18 km (11 miles) between the Caia river and Ribeira de Cuncos, because of the disputed status of Olivenza, which has been
Portugal in the Middle Ages privileges and favours given to the Roman Catholic Church were compensated. In the papal bull " Manifestis Probatum", Pope Alexander III acknowledged Afonso as King and Portugal as an independent land with the right to conquer lands from the Moors. With this papal blessing, Portugal was at last secured as a country and safe from any Leonese attempts at annexation. In 1184, in spite of his great age, King Afonso of Portugal still had sufficient energy to relieve his son Sancho, who was besieged in Santarém by the Moors. He died shortly after, on December 6, 1185. Afonso had already