It reached its peak of fame as a restaurant and nightclub (a café-concert known as the Café des Ambassadeurs) in the last three decades of the 19th century.

Edgar Degas and Henri de Toulouse-Lautrec portrayed visitors at the night club,[1][2] and artists like Eugénie Fougère and Aristide Bruant performed there.

Following a renovation of the hotel in 1981–85, the restaurant occupied a former private ballroom with windows looking out on the Place de la Concorde,[3] a few hundred meters from the Palais Garnier.

It was decorated in an 18th-century rococo style, redesigned by Sybille de Margérie with furnishings by Sonia Rykiel.

[6] In 2017 Hache opened a smaller restaurant, L'Écrin, within the renovated hotel; the former space of Les Ambassadeurs became a bar.