De Saint-Marceaux became a celebrated salonnière in the 1880s up until the outbreak of
World War I, hosting musical and artistic
salons at her Malesherbes mansion, where she invited painters, writers, and musicians to mingle with aristocrats and other members of the Parisian upper class. Her salons, considered very informal and Bohemian, were on Friday evenings and
full evening dress was prohibited. Her salons were described in the correspondence and writings of various attendees including Fauré, Ravel, Schmitt, Koechlin, Messager, Hahn, Cortot, Proust, Colette, and Gauthier-Villars. came together, often served as a whimsical curfew bell. It was in that sonorous place — sensitive to reverence, jealous of its prerogatives but capable of gentleness — that I first met
Maurice Ravel." De Saint-Marceaux was also fond of writers, particularly playwrights, and invited many to her salons. Frequently in attendance were
Édouard Bourdet,
Robert de Flers,
Abel Hermant,
Paul Hervieu,
Henri Lavedan,
Jules Lemaître, and
Victorien Sardou. She also hosted journalists and critics including
André Beaunier,
Gaston Calmette,
Louis Gillet,
Arthur Meyer, and
Pierre Lalo. She introduced Fauré to his future wife, Marie Frémiet, the daughter of sculptor
Emmanuel Frémiet, at one of her salons. On 21 June 1891, he premiered
Mandoline from
Cinq mélodies "de Venise" at her salon.
Alfred Cortot, who introduced de Saint-Marceaux to the music of
Richard Wagner, hired her to sing in the choir for
Parsifal in 1903. In 1900, she hired the violinist
Jacques Thibaud, a new graduate from the
Conservatoire de Paris, to play at one of her salons. She noted the experience in her diary, writing: "Thibaud with his quartet plays at my house the 2nd quartet of Fauré and that of Saint-Saëns, and also the piano and violin sonata [by Fauré]. Exquisite evening. It costs me 200 francs, it is worth 1000."
Artistic patronages Having been introduced to the world of visual arts by her half-brother, de Saint-Marceaux remained a patroness of painters and sculptors alike after the death of her first husband, and visual artists frequented her salon. She was known to financially support artists and attended their exhibitions. These artists included
Jacques-Émile Blanche,
Giovanni Boldini,
Carolus-Duran,
Georges Clairin,
Édouard Detaille,
Guillaume Dubufe,
Henri Gervex,
Paul Landowski,
Paul Mathey,
Madeleine Lemaire,
Antonin Mercié, and
François Pompon. Through her artistic connections, she was introduced to
Claude Monet, who received her at his
home in Giverny. == Later life and death ==