In 1684, Louis XIV laid the first stone of a new building: the parish of Notre-Dame which gave its name to the district. The inhabitants of the old Versailles, the Parc aux Cerfs and the nearby streets, numbering about four thousand and fifty, no longer had any place of worship. Notre-Dame was far away and its access difficult, since it was then necessary to cross the square to get there. When, at the end of the seventeenth century, this part of the city expanded, the architects in charge of drawing up the plans did not fail to provide a church By decree of Charles Gaspard Guillaume de Vintimille du Luc, archbishop of Paris, on June 4, 1730, a chapel was erected as a parish under the patronage of Saint Louis. The people had to make do with this chapel for several years. However, there were more and more of them. Finally, around 1740, it was decided to build a real church. There was a large square there that seemed perfectly suited to this destination. In May 1742 Louis XV appointed Jacques Hardouin-Mansart de Sagonne, grandson of the architect of Louis XIV, to the great displeasure of Ange-Jacques Gabriel, official architect of the king who hoped to receive the commission. A church of Rocaille style was built It was blessed on August 25, 1754, the day of the Saint Louis, and chosen as the cathedral at the creation of the bishopric of Versailles in 1802. It was consecrated only in 1843. It was classified as a historical monument on October 30, 1906