Hôtel de Masseran, Neoclassical mansion in 7th arrondissement, France.

The Hôtel de Masseran is a private mansion built in 1787 by architect Alexandre-Théodore Brongniart at 11, rue Masseran in the 7th arrondissement of Paris. Its garden façade, visible from the boulevard des Invalides, is divided by pilasters topped with Corinthian capitals. The building has 3,000 m² of floor space and a 1,590 m² garden. From the street, a tall cream-coloured wall with a projecting stone entrance and dark double doors stands before the house.

Built in 1787 by Alexandre-Théodore Brongniart, who owned the land and followed the works closely, the mansion takes its name from Carlo Sebastiano Ferrero Fieschi, prince of Masserano, a Grandee of Spain descended from Charles Emmanuel II of Savoy and a cousin of Louis XVI. The Ferrero-Fieschi line held it until 1833, when Carlo Ludovico died and the dynasty ended. In 1836 it passed to the Belgian-born Paris banker Louis François-Xavier De Clercq, and in the 1970s the Rothschilds sold it to Félix Houphouët-Boigny, president of Ivory Coast, who used it as his Paris residence until his death in 1993.

The mansion's name comes from Carlo Sebastiano Ferrero Fieschi, prince of Masserano, who had it built in 1787. In the 20th century Count Étienne de Beaumont, a patron of Diaghilev's Ballets Russes, held famous parties here, including a 1939 "Louis XIV" ball reviving the splendours of Versailles. He lodged Marie Laurencin in one of the courtyard pavilions and rented another, at the corner of rue Duroc, to sculptor Jo Davidson.

The building is located on rue Masseran and is not open to the public as it remains a private residence. It can be admired from outside, and it is worth observing the details of the neoclassical façade from the street.

Raymond Radiguet drew on the mansion's interiors for the setting of Le Bal du comte d'Orgel, published in 1924, two years after his death. The house was then the home of Count Étienne de Beaumont, who hosted a "Louis XIV" ball there in 1939.