The important bastide (fortified medieval town) of Sauveterre was founded in 1281 by King Edward I of England.
During the 100 years war the bastide changed hands 10 times and finally ended up French in 1451.
The central arcaded square and the four town gates are still intact. The Saintonge romanesque style portal of the church at Castelviel depicts the tasks of the time month by month, the combat of virtues and vices, the faithful symbolized by characters linked by a rope.
These scenes are among the most beautiful in the Gironde Departement.