king Alfonso II of Asturias promoted the construction of a basilica at the core of the Kingdom of Asturias' newly established royal court (regia sedes): what today conforms the oldest part of Oviedo's historic centre was then a political and religious complex that included a royal palace, several churches, monasteries, baths, stables, etc. This primitive basilica was consecrated to the Holy Saviour and the Apostles, and built in a typical pre-Romanesque Asturian style, with a straight-shaped sanctuary preceded by three aisles. In 910, the founding of the Kingdom of León led to the translation of the royal court from its original location in Oviedo to the city of León, at the southern side of the Cantabrian Mountains. However, the Oviedo settlement remained as an episcopal site, surrounded by a typical medieval town which would become an important stop in the northern branch of the Way of St. James. In this context, the old basilica founded by Alfonso II became a cathedral, undergoing successive changes during the Early and Late Middle Ages. The building known as Cámara Santa ("Holy Chamber") is the most important surviving structure from the primitive pre-Romanesque royal complex: it is a two-story building with a rectangular plan, which shelters several burials in its lower floor and keeps a collection of royal treasures and relics in the upper floor, like the well-known Cross of the Angels ("Cruz de los ángeles") and the Victory Cross ("Cruz de la victoria"), both of them important symbols of the Asturian monarchy. During the 12th century, because of the constant flow of pilgrims and visitors, the Cámara Santa was reformed: it was then when the aisle in the upper floor was decorated with an excellent group of late Romanesque column statues depicting the Apostles; additionally, a barrel vault was added, replacing the former ceiling made of wooden beams. Another Romanesque element is the "Torre Vieja" ("Old Tower"), a bell tower with pre-Romanesque foundations which was heightened with the addition of an arched gallery and a ribbed vault. Additionally, several archaeological evidences suggest the existence of a Romanesque cloister which would have preceded the current Gothic cloister. During the Late Middle Ages, Oviedo Cathedral underwent major changes, becoming the most important architectural workshop of Asturias: between ca. 1300–1550, the old pre-Romanesque basilica, as well as its presumed Romanesque premises, were demolished and replaced by a set of classic and flamboyant Gothic elements, including the