The village of Vernègues developed in the 8th century when, according to ancient maps, there were two hill top fortifications, the Castrum de Avallone and the Castrum Alvernicum. The latter, constructed on a rocky escarpment, became Vernègues and its medieval castle. On the evening of 11 June 1909, the Lambesc earthquake (magnitude 6 on the Richter scale) shook the region and destroyed practically all of the castle and the old village that had developed around it. Today, ruins on the south flank of the plateau are witness to the severity of the earthquake.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).