Rouen duck with higher production. The eggs are typically white, but can have blue and green tints. Exhibition-typed Rouen ducks have been known to crush their eggs if allowed to set due to their massive frames. In 1861, Mrs Beeton said of it: The origin of the name is not known. When they arrived in England, they were variously called Rhône, after the region in southwest-central France, Rohan, after the cardinal of that name, Roan, for the mixture of colours, and Rouen after the northern French town, with Rouen eventually being adopted in both England and France. In France they are called
Rouen 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 (Lyon) itself.