The phenomenon of marginal, then rebellious and simultaneously cursory court of Margaret de Valois, sister of Henri III and wife of Henri IV, in France in 1585—1587, by acquiring the nature of the political phenomenon, in the conditions of the decisive phase of the Civil war was, undoubtedly, a destructive factor for the Valois family, «tearing» single Royal body and causing confusion in the Royal house, which, however, itself provoked a conflict. In these circumstances, the fear of transmitting the crown to hostile and alien Lorraine clan persuaded Henry III and later Henry IV to recognize the political importance of the figure of Queen Margaret (and her court) as necessary ally in reaching the cohesion of the country and preservation of the legitimacy of the Royal power. It is the court of Margaret de Valois that could become a connecting chain of the disappeared Valois court and newly assembled court of Bourbons.