Rouen. Rouen is a city on the River Seine in the north of France.
It is the capital of the region of Normandy. Formerly one of the largest and most prosperous cities of medieval Europe, Rouen was the seat of the Exchequer of Normandy during the Middle Ages.
It was one of the capitals of the Anglo-Norman dynasties, which ruled both England and large parts of modern France from the 11th to the 15th centuries. The population of the metropolitan area at the 2011 census was 655,013, with the city proper having an estimated population of 111,557.
People from Rouen are known as Rouennais. Rouen and its metropolitan area of 70 suburban communes form the Métropole Rouen Normandie, with 494,382 inhabitants at the 2010 census.
In descending order of population, the largest of these suburbs are Sotteville-lès-Rouen, Saint-Étienne-du-Rouvray, Le Grand-Quevilly, Le Petit-Quevilly, and Mont-Saint-Aignan, each with a population exceeding 20,000. Rouen was founded by the Gaulish tribe of the Veliocasses, who controlled a large area in the lower Seine valley. They called it Ratumacos; the Romans called it Rotomagus. It was considered the second city of Gallia Lugdunensis after Lugdunum itself. Under the reorganization of Diocletian, Rouen was the chief city of the divided province Gallia Lugdunensis II and reached the apogee of its Roman development, with an amphitheatre and thermae of which foundation