She was the granddaughter of Silvia Loeb-Luzzatto and art dealer Pierre Loeb on her maternal side.
On her paternal side, her grandparents were the Polish-Jewish painter Joachim Weingart and the sculptor Muriel Marquet-Pontrémoli.
Discovered in 1971 by Robert Bresson, who offered her the main role in Four Nights of a Dreamer.
A longtime photographer, she began working for Cahiers du Cinéma in 1986 as a portrait painter, and photography became her main activity.
In 2008, she began studying the works of her father, Romain Weingarten, poet and playwright.