Marie Françoise Rose Le Chevalier de Longueil, married at 11 years and 18 days

tanlistwa, Mariage de Louis de France, duc de Bourgogne, et de Marie-Adélaïde de Savoie

I don't know where to start. How do you find a sympathetic catchphrase to tell the story of an 11-year-old's girl marriage? Today, with a knot in my stomach, I tell you about Marie Françoise Rose.