<Tr> <Td_colspan="14"> Source: Agencia Estatal de Meteorología </Td> </Tr> <P> Archaeological excavations have shown that the area was already settled in the upper palaeolithic era . </P> <P> The existence of the town proper date is documented only in the early Middle Ages, although the name "Avilés" is thought to come from a local Roman landowner, Abilius . </P> <P> 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 . </P>

Where does the last name aviles come from
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