St-Jean-le-Rond de Paris
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Saint-Jean-le-Rond was a parish church next to the north tower of the westwork of the Notre-Dame de Paris cathedral in Paris ( 4th arrondissement ). It served as a baptistery until it was demolished.
The building history of the church goes back to the 13th century. In the 17th century the Gothic facade was replaced by a Classicist one. In 1748 the church was torn down, the usable demolition material was used in 1751 for the restoration of the portal to the cloister of Notre Dame by Germain Boffrand .
The mathematician Jean le Rond d'Alembert owes his first name to this church, on the stairs of which he was found a foundling in 1717 .
Victor Hugo , who no longer knew the sacred building, described it in his novel The Hunchback of Notre-Dame ( French : Notre-Dame de Paris) , published in 1831 .