Choisy Cathedral, otherwise known as the Church of St. Louis and St. Nicholas, was the first cathedral of the diocese of Créteil, from 1966, when the diocese was created, to 1987, when the present Créteil Cathedral was inaugurated.
The church was built by the architect Ange-Jacques Gabriel under commission from Louis XV to provide a suitable place of worship for the court when the king was staying at his newly purchased residence at the Château de Choisy. The first stone was laid, by the king himself, on 4 July 1748, and the church was dedicated in the presence of the king, the court and the Archbishop of Paris on 21 September 1760.
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).