Normandy from old French Normanz, plural of Normant, originally from the word for "northman" in several Scandinavian languages is a geographical and cultural region of France in northwestern Europe, roughly coextensive with the historical Duchy of Normandy.
Normandy comprises mainland Normandy and insular Normandy (mostly the British Channel Islands). It covers 30,627 square kilometres. Its population is 3,499,280.
Normandy's name comes from the settlement of the territory by Vikings ("Northmen") starting in the 9th century, and confirmed by treaty in the 10th century between King Charles III of France and the Viking jarl Rollo. For almost 150 years following the Norman conquest of England in 1066, Normandy and England were linked by having the same person reign as both Duke of Normandy and King of England.