The Fall of a Carolingian Kingdom investigates how the first royal divorce scandal led to the collapse of a kingdom, changing the fate of medieval Europe. Through a set of annotated translations of key contemporary sources, the book presents the downfall of the Frankish kingdom of Lotharingia as a case study in early medieval politics, equipping readers to develop their own independent interpretations.

The book tracks the twists and turns of the scandal as it unfolded over a crucial decade and a half in the ninth century. Drawing on primary sources such as letters, material culture, and secret treaties, The Fall of a Carolingian Kingdom offers readers a sharply defined window into one of the most dramatic episodes in Carolingian history, rich with insights on the workings of early medieval society.