Hôtel Rothelin-Charolais, Private mansion in 7th arrondissement, France.

The Hôtel Rothelin-Charolais is a private mansion on Rue de Grenelle featuring rooms and halls distributed across three floors. Its interior includes an entrance hall, a grand salon, a hall of mirrors, and spaces decorated with fine wooden paneling.

Built around 1703 for Philippe d'Orléans, Marquis de Rothelin, the mansion is attributed to Pierre Cailleteau, called Lassurance, with construction by the architect Audier. Rothelin enlarged the plot but, in debt, sold it to the Swiss banker Antoine Hogguer. In 1736 Louise-Anne de Bourbon-Condé, Princess of Charolais, bought it and added Louis XV decoration. From 1793 to 1860 it housed the Ministry of the Interior.

The name Charolais comes from Louise-Anne de Bourbon-Condé, known as Mademoiselle de Charolais, who bought the mansion in 1736 and gave it Louis XV decoration. Her salon survives with its carved Rocaille wood panelling, a detail a visitor can look for. The building has housed government offices since 1793.

The building currently serves as a government office and is normally closed to the public. Access is only possible during Heritage Days when the doors open for special visits.

The Washington, D.C. mansion built in 1932 by architect Horace Trumbauer for Horace Elgin Dodge's daughter is a copy of the Hôtel de Rothelin-Charolais. Its French character is credited to Trumbauer's chief designer Julian F. Abele, who studied in France. Belgium bought the house in 1945 for its embassy.