This is a collection of the selected papers of John La Patourel, considered by him to be the most representative of his body of work on the Norman and Plantaganet feudal empires. A striking feature of this anthology is the unity, modification and development of Professor Le Patourel's thought from his earliest to the latest essays included. Adopting a comparative framework and looking at topics such as the Channel Islands in the early middle ages, Normandy and England from 1066-1144, the Angevin Empire, the Hundred Years War and the Treaty of Bretigny, Professor La Patourel's work yields new insights and understandings in the history of 14th-century Europe.