building entered a progressive decrepitude. Divided into several tenuous residences, the building housed throughout the 19th century workshops, stores, and factories, among which was the headquarters of an alembic and distillation instruments company. The east part of the garden, including a pond, was built up. Among the many tenants was Alphonse Daudet, who lived in the hôtel with his family from 1867 onwards, and who invited over such friends as Turgenev, Flaubert or Edmond de Goncourt. Becomes a recognised historic landmark In 1872 and 1873, the idea emerged in the municipal council to buy and restore the building, to extend the nearby Carnavalet Museum. This was not realised until March 1928: the City of Paris acquired the hôtel in exchange, as compensation for the previous owner, of a larger vacant lot near the Porte de Champerret. Despite the initial project, the City decided to move its municipal historical library into the building, the Bibliothèque Historique de la Ville de Paris, previously housed in the Hôtel Le Peletier de Saint-Fargeau, allowing the latter to be annexed to the Carnavalet Museum. Between 1955 and 1968, the building was restored and extended to finally house the library. The heritage site architects, , Jean Creuzot and André Vois first strengthened the hôtel, which was in danger of collapsing, destroyed all the 19th-century additions in the courtyard and gardens, and restored the hôtel to its early-modern appearance, including the interior and its painted panellings. From 1964 onwards, a new wing was added to the south, which serves as a conservation area for the growing archival collections. The new construction was deliberately kept simple and austere to highlight the original and restored Renaissance hôtel. Two more basement floors were also dug under the foundations. Notes Bibliography Ayers, Andrew (2004). The Architecture of Paris. Stuttgart; London: Edition Axel Menges. . Ballon, Hilary (1991). The Paris of Henri IV: Architecture and Urbanism. Cambridge, Massachusetts: The MIT Press. . Blunt, Anthony (1999). Art and Architecture in France, 1500–1700, fifth edition revised by Richard Beresford. New Haven: Yale University Press. . (paperback). Dauvergne, Robert (1961) “Une grande résidence au Marais en 1650 : l'hôtel du duc d'Angoulême”, Bulletin de la Société de l'histoire de Paris et de l'Île-de-France, 1961, p. 81-90 Fossier, François (1997). "122. Paris. Hôtel de Lamoignon", pp. 318–319, in Les dessins du fonds Robert de Cotte de la Bibliothèque nationale de France : Architecture et décor. Paris: