By the time the Normans invaded England, they had gone thoroughly native in France and shed their Nordic origins, and as an Old French dialect theirs wasn't par

By the time the Normans invaded England, they had gone thoroughly native in France and shed their Nordic origins, and as an Old French dialect theirs wasn't particularly unusual. Any textbook of Old French will go over the differences between the Old French of Normandy and that of Paris, and these differences are rather minor.