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Perhaps the most exciting find within the apartment was a portrait of Madame de Florian’s grandmother, Marthe de Florian by artist, Giovanni Boldini. Her grandmother had been a socialite, a theater actress, and a muse of Boldini. The painting took time to authenticate because it didn’t have the artist’s signature. It was also never listed, exhibited, or published. Luckily, a visiting card with a love note written by the artist was found in the apartment. This information was confirmed by a short reference in a 1951 book commissioned by the artist’s widow, Emilia Cardona. Based on the book reference, the actress was 24 years old and the work was painted in 1888.