Rouen is a city on the River Seine in northern France. It is the capital of the region of Normandy. Formerly one of the largest and most prosperous cities of medieval Europe, the population of the metropolitan area is 666,035 People from Rouen are known as Rouennais. Rouen was the seat of the Exchequer of Normandy during the Middle Ages. It was one of the capitals of the Anglo-Norman dynasties, w...