Conflict between England and France was a fact of life for centuries, but few realize that its origins date from the time of the Vikings, when a Norse chieftain named Rollo established himself and his progeny in Normandy. In this compelling and entertaining history, Mary McAuliffe takes the reader back to those dark and turbulent times when Rollo's descendants, the dukes of Normandy, asserted their dominance over the weak French monarchy—a dominance that became especially threatening after Duke William conquered England in 1066, giving him a royal crown.