the "respublique françoyse" was an invention of King Charles V and his contemporaries. Following the political upheavals of the 1350s and the Treaties of Brétigny and Calais, the "wise king", his legal experts, philosophers such as Nicole Oresme, and citizens had to protect the territorial integrity of the kingdom. Adopting the vocabulary of the Estates of 1356-1357, the royal ordinances speak of "the good of the public thing", but also of respect for royal jurisdiction and sovereignty (in a completely different sense from Bodin's). We attempt to analyze four key moments in the evolution of this "respublique françoyse" and the state that replaced it around 1600: the birth of this "respublique" (1355-1405); the War of the Public Good (1465); the reign of Henri IV; and the apogee of the state under Louis XIV. As a transition to the second lecture, we address the question of the rebirth of the public good under Louis XV, in an entirely different form to that of the 16th century.