The Château-sur-Epte Castle construction was begun in 1097 by William Rufus, King of England, to reinforce the frontier of Epte. The castle occupied a site on the border between the Duchy of Normandy and the Kingdom of France. In 1119, it was besieged by Louis VI of France and reinforced by the Plantagenets in the 12th century and again during the Hundred Years' War.
In the 12th century, it was restored and reinforced by Henry II of England (keep and entry). Other works were carried out in the 14th century. In 1437, the château was captured by John Talbot, 1st Earl of Shrewsbury. The castle's role declined in the 16th century and it was ordered to be dismantled by Mazarin in 1647. Transformed into an agricultural centre under the Ancien Régime, it comprised a motte with a stone keep, a lower court linked to the motte and defended by a curtain wall flanked in the east and west by two fortified gateways (14th century), a drawbridge and, in the lower court, a medieval barn, a 17th century corps de logis and a dovecote. The condition of the site deteriorated.
The ruins are private property. It has been listed since 1926 as a monument historique by the French Ministry of Culture.
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).