Madame X or Portrait of Madame X is the informal title of a portrait painting by John Singer Sargent of a young socialite named Virginie Amélie Avegno Gautreau, wife of Pierre Gautreau.
The model was an American expatriate
who married a French banker, and became notorious in Parisian high
society for her beauty and rumored infidelities. She wore lavender
powder and prided herself on her appearance.
Madame X was painted not as a commission, but at the request of Sargent.