"Historie des ducs de Normandie, suivie de: Vie de Guillaume le Conquérant" is a historical work dealing with the separate line of the Dukes of Normandy and especially with the life and achievements of the great Guillaume the Conqueror who became King of England. The authors of this work are William of Jumieges and William of Poitiers. The book describes complex historical events, battles and intrigues that took place in medieval Europe, revealing to the reader the fascinating world of the early Middle Ages. This book will be an important source of knowledge for anyone interested in the history of Normandy and Great Britain."