The Church of Notre-Dame in Versailles was built at the command of Louis XIV by Jules Hardouin-Mansart in the Neo-Classical style and was consecrated on 30 October 1686. The parish of Notre-Dame included the Palace of Versailles and thus registered the baptisms, marriages and burials of the French royal family.
In 1791 it was declared a cathedral but converted to a Temple of Reason in 1793. After the Revolution the bishop of Versailles chose the Church of Saint-Louis as his seat instead (the present Versailles Cathedral).
Between 1858 and 1873, a new chapel was added by the architect Le Poittevin, who also built the market-halls of the Marché Notre-Dame.
The church contains sculptures by Pierre Mazzeline and Noël Jouvenet.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.