The portraits you have seen of our daughter [Marie Thérèse] cannot give you an accurate idea of her; they are not in the least like her. She so closely resembles both her father and her mother that she recalls them absolutely, together or separately, according to the point of view from which one looks at her.
Her natural gaiety is not quenched; draw her mind away from this tragic chapter of her life, and she laughs heartily and is quite charming. She is gentle, good-humoured, and affectionate … she is modest without being shy, at her ease without being familiar, and as innocent as on the day she was born. … In fact, to put it briefly, I recognize in her the angel we have lost.
—Louis XVIII to the comte d’Artois, on their niece Marie Thérèse Charlotte.
[translation: Madame Royale, daughter of Louis XVI and Marie Antoinette: her Youth and Marriage by Ernest Daudet.]
[image credit: (C) RMN-Grand Palais (domaine de Chantilly) / René-Gabriel Ojéda]