The earlier church of Cléry-Saint-André Abbey from the 13th century was destroyed in Hundred Years' War in 1428. Only the tower survived until in 1449 Charles VII and Count Jean de Dunois ordered to build a new church. It was completed in 1485. The nave is 80m long and 27m high. The altar dates from the 19th century. The most notable inventory in the Cléry church is tomb of Louis XI of France. He was buried to the church in 1483.
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).