The Cornillon old castle

The Cornillon-sur-l'Oule castle is one of the most impressive testimonies of the Provencal comtal power which controlled, between the 13th and the 15th century, a set of seigniories in the Oule valley, called the "claverie de l'Oule". The dimensions of the sides of its triangular enclosure are 44, 30 and 51 meters. To the east and below the castle stood the medieval village of Cornillon which only a portion of the northern wall that meets the castle is still visible.