Normandy () is a region in the northern part of France. People from Normandy are called Normans. The name Normandy comes from the conquest and subsequent settlement of the area by the "Northmen" () also called Vikings. The group of people that settled at Rouen and became the Normans was led by Rollo. It is also famous for being the location of the Allied invasion of France during World War II (See D-Day). The Battle of Normandy was the beginning of the Allied invasion and liberation of Europe from Nazi Germany.