Avilés (; ) is a town in Asturias, Spain. Avilés is, along with Oviedo and Gijón, one of the main cities in the Principality of Asturias. The town occupies the flattest land in the municipality, partially in a land that belonged to the sea, surrounded by small promontories, all of them having an altitude of less than 140 metres. Situated in the Avilés estuary, in the Northern Central area of the Asturian coast, west of Peñas Cape, is its national seaport. Avilés is mainly an industrial city. It is close to popular beaches like Salinas. It also has important churches like St. Thomas of Canterbury. Avilés has also cultural spaces such as the Palacio Valdés Theatre (in Spanish: ) or the Oscar Niemeyer International Cultural Centre (in Spanish: ). History Toponymy The existence of the town proper is documented only in the latter Early Middle Ages, although the etymology of the name "Avilés" is likely ancient. It is thought to come from a local Roman landowner or likely a Romanized Germanic warrior who settled there from/to the Kingdom of the Suebi or Visigothic Kingdom, as much toponymy in northern Spain shares a Germanic origin named Abilius. Chronology Archaeological excavations have shown that the area was already settled in the upper palaeolithic era. The first well known document is an endowment of two churches by Asturias King Alfonso III, in 905. During the Middle Ages, it was one of the most important ports of the Biscay Bay, trading mainly with French ports, the main trade was salt. At this time, it had two nuclei: a fishermen's district, Sabugo, and the aristocratic centre, La Villa, standing each other across a small water inlet at the site of present-day Avilés' main Park. La Villa was surrounded by strong walls, which demonstrated its strategic and commercial importance. On 15 January 1479 the Catholic Monarchs granted a free market on each Monday of the year, which still takes place. The importance of the town as a naval centre is supported by the building of ships with wood harvested from nearby forests, and with the participation of local sailors in the conquest of Seville by the Castilian army, which is reflected in Avilés's coat of arms. It is the birthplace of Pedro Menéndez de Avilés, a soldier in the army of Felipe II, who explored Florida in the 16th century and founded in 1565 the first