Fredric Cheyette's book Ermengard of Narbonne and the world of the troubadours, examines the life of Ermengard (1130-1196) through the study of the sixty-four documents that report the his name. The book focused on the city of Narbonne, and the region of Occitania in general, which had only previously been studied in a later period during the Albigensian Crusade. This region has received a lot of attention because there are multiple sources and because this was not a biography in which Ermengard was reconstructed beyond what the sources have to say about her. :There are numerous archival sources used which have contributed to building a rich description of the region. One focus was on love poetry, which he analyzed through the lens of the historian to see the role this poetry played and what it said about the society that created it. He was against the overinterpretation of this poem that many have made, especially those who use the lens of literary analysis. The book was divided into four parts. There was the section on the social, dynastic and economic composition of the region. From there the book focused on how power worked in a court of law. Cheyetted examined how individual members of the court acted and how their power relationships worked. The next part addressed the idea of ​​a culture of loyalty through the study of oaths and poetry. The last part focuses on the political events from 1162 to 1196. Here the dynastic struggles within these wars are the center of attention. Cheyette continued the work from her chapter in Aristocratic Women, looking again at the troubadours, and here showed her argument for the use of the language of love in even more detail. Here he showed that love was used to describe oaths, agreements and honor, focusing on... in the center of the paper... a role played by women. One of the many examples Cheyette gave of the importance of women was how those who took the oath were identified by their mother. Another improvement that Cheyette seems to make is that this was not an insignificant region, full of these radical, heretical Cathars. Instead, Cheyette argues that the Albigensian Crusade was caused by Raymond's power play and Pope Innocent III's plan to pit different powers against each other. There were Cathars there, but their beliefs were tolerated even after the crusade. Cheyette therefore argues that the crusade was not caused by religion, but by political maneuvers for power. It also goes against the idea that Occitania was a region with little to do, this book detailed the urban centers, rich culture and economy, although it was not a unified state, there were many things to do within of the region..