Cadiz is a city and port in southwestern Spain. It is the capital of Cadiz province, one of eight which make up the autonomous community of Andalusia. Cadiz, the oldest continuously-inhabited city in Spain and one of the oldest in western Europe, has been a principal home port of the Spanish Navy since the accession of the Spanish Bourbons in the 18th century. The city is a member of the Most Ancient European Towns Network. It is also the site of the University of Cadiz.