Note 3080 — BOOK IV. AN ACCOUNT OF COUNTRIES, NATIONS, SEAS, TOWNS, HAVENS, MOUNTAINS, RIVERS, DISTANCES, AND PEOPLES WHO NOW EXIST OR FORMERLY EXISTED.
John Bostock translation
Ansart suggests that this is the modern San Vicente de la Barquera. If the river Sauga is the same with the Suancès, this cannot be the port of Santander, as has been suggested.