The volume includes the first systematic historical investigation of the "Correspondance littéraire" by Friedrich Melchior Grimm, a handwritten periodical produced in Paris with the involvement of leading French Enlightenment figures exclusively for a princely readership. The analysis of this type of media not only allows for a more precise understanding of the French media landscape of the 18th century but also contributes to the understanding of the cultural orientation of European princely courts towards the "Model France." The "Correspondance littéraire" also plays a crucial role in the development of a network of French Enlightenment thinkers and European rulers. The analysis of the constitutive mechanisms of exchange opens up a new approach to the problem of communicative remodeling of monarchical rule in Z.