During the Demonstration of 20 June 1792, she was present in the company of the queen when a mob broke into the palace. Marie Antoinette immediately cried that her place was by the king's side, but Lamballe then cried: "No, no, Madame, your place is with your children!", after which a table was pulled before her to protect her from the mob. Lamballe, alongside Princess de Tarente, Madame de Tourzel, the Duchess de Maillé, Mme de Laroche-Aymon, Marie Angélique de Mackau, Renée Suzanne de Soucy, Mme de Ginestous, and a few noblemen, belonged to the courtiers surrounding the queen and her children for several hours when the mob passed by the room shouting insults to Marie Antoinette.