The article that I had read about this book announced the analysis of the transition from "Spring" to "territory" essential question of the constitution of the political space. I was disappointed, despite some interesting remarks and recounts. I find Fawtier, 1959, ten pages says ten times more than the author. Starting with the title question of "four rivers", which are raised as framing the "French" space (and transformed by the political process of "limits" to "borders"). The Treaty of Verdun is only a mythical reference which no one has concern for long. The author points out, in passing, the first mention of "four rivers" by Philiippe iv in 1297. We would like to know more and that such distinction is problematized by the contribution of Philip to the institution of the realm. This resurgence of Verdun Is not rhetoric? Our author postulates that France has a "territorial specificity is" and all is said. Perhaps the time slicing 1380/1515 (with centering on Charles vii) Is responsible for these limitations?