 Castros such as those in Vilariño or As Corredoiras are preserved from the Castro culture.Of the romanization there are remains of the Roman camp of Ciadella, the bigger of those discovered in Galicia, between the municipalities of Sobrado and Vilasantar.In the Middle Ages, these lands belonged to the county of Présaras, which had its origin in the Roman praessurae, desert lands offered to settlers to be populated and cultivated.