The influence of Marivaux? moral weekly on his two novels La Vie de Marianne and Le Paysan parvenu written by Maria Erkinger The well-known French playwright Marivaux is often attributed to his important literary contributions, especially in drama. Though he is highly regarded in the literary field for his plays, this thesis examines the themes and formal aspects of his other works such as his famous moral weekly, Le Spectateur français, and his two novels, La Vie de Marianne and Le Paysan parvenu. The main focus of this thesis is an examination of the influence of the moral weekly on the novels.In the beginning portion of this thesis, the themes of Le Spectateur français are discussed. Then they are compared with those treated in La Vie de Marianne and Le Paysan parvenu as well as with the historical background. Subsequently, the formal composition of some components of the moral weekly and novels (fictional authorship, communication system, narrative mood, constellation of actants and narrative functions) is analysed. It is very clear that Le Spectateur français had a major influence on the two novels. In all of these works, everyday occurrences are described, creating a realistic setting and set of events. Furthermore, characteristics of the Age of Enlightenment are incorporated throughout the narratives. Though he was a proponent of the political hierarchy at the time, Marivaux also integrated notions of serious deficits and concerns of minority groups within society in his works. Concerning the formal structures, analogies as well as discrepancies are stated. The fictional authorship is applied in the moral weekly and the novels. Moreover the same mechanisms in the creation of the narrative mood and the actantial structure are used in the writings. However, the communication system and the narrative functions of the moral weekly differ from the novels.