Louise Florence Petronille Tardieu d’Esclavelles d’Epinay, better known as Madame d’Epinay, was a French writer, a saloniste and woman of fashion, known on account of her liaisons with Friedrich Melchior, Baron von Grimm, and Jean-Jacques Rousseau, who gives unflattering reports of her in his Confessions, as well as her acquaintanceship with Denis Diderot, Jean le…