This paper is intended to survey the production of texts executed by Charles V and the Princes du sang between 1360 and 1407 in France from the standpoint of the ‘Laws of Imitation’ proposed by Gabriel Tarde. The remarkable quantity of production of texts under Charles V is characterized by the accumulation of the cultural capitals in order to justify the royal political authority, leader of the state system. The success of government of Charles V or the efficient imposition of the state system corresponded with his ideological works. But after his death and the insanity of Charles VI, the political situation is very instable because of the rivalry between the brothers of Charles V, princes du sang. It was about to start the Civil War between the faction of Armagnac and that of Bourgogne. The growing political tension was developed around the state finance and the bastard feudality. In this situation, the princes produced also texts as an imitation of Charles V. But these activity were not the repetition of same texts but the imitation of production itself as the manner of justifying their political authorities. It corresponded to the political situation marked by division and unity of the state system. Concurrence between them and imitation after Charles V became a form of political culture around the year of 1400. This tendency have to be more investigated for the period of the Civil War in the first half of the 15th Century.