[editor’s summary] Le Mémoire de Mahelot is the main source of information on the scenography practised on the public scene in France in the 17th century. It was a work register for the use of the decorator and comedy of the Royal Troupe, established at the Hotel de Bourgogne since 1629, where the list of items entered in the troop’s repertoire and the technical manuals (sometimes accompanied by scenography sketches) needed to represent these works were recorded. The Mahelot Memory offers two cuts made in the repertoire of the same troop at two key periods in the history of the French theatre, on the one hand, in the 1630s and, on the other hand, in the 1670 1680s. It thus makes it possible to compare the scenography in use on the Paris scene with the strongest of baroque modernism and at a time when the traditional model has reached maturity. It thus makes it possible to understand how, at the Hôtel de Bourgogne in the 17th century, disagreements were conceived, realised, planted and used during the representation.