Cantabria, a district of ancient-Spain, bordering on the S. coast of the bay of Biscay, and including, according to some of the earlier geographers, what are now the provinces of Oviedo, Santander, Biscay, and Guipuzcoa. After the Roman invasion the name was restricted to the western half, included in that part of the peninsula known as Hispania Tar-raconensis. On the east were the territories of the Autrigones, Varduli, and Vascones; on the west the river Salia separated it from the country of the Astures; and the southern boundary was formed by the Cantabrian mountains. The river Ebro (Iberus) takes its rise near the district occupied by the Tuisi, one of the five principal tribes (the Pleutauri, Varduli, Autrigones, Oonisci or Goncani, and Tuisi) into which the inhabitants were divided. Pliny mentions nine cities of Cantabria, of which Juliobriga alone was of any importance. - The Cantabri were a warlike people, and of all the Iberian nations opposed the stoutest resistance to the Romans, and, though more than once forced into nominal subjection, were never wholly subdued. A portion of them acknowledged the supremacy of Augustus, but the bulk of the nation preserved their independence among the fastnesses of their mountains.

After their first partial subjection, 25 B. 0., they several times revolted, and were almost exterminated by Agrippa in 19.