Madame Adélaïde was one of the three younger daughters of Louis XV who did not marry. She was not known for dressing well according to her Wikipedia article.

1749 Madame Adélaïde de France by Jean-Marc Nattier (Châteaux de Versailles et de Trianon - Versailles, Île-de-France, France)

1763 Marie Adelaïde de Bourbon by workshop of François-Hubert Drouais (Châteaux de Versailles et de Trianon - Versailles, Île-de-France, France)
