the site of the main town of the Caletes, the Gaulish tribe of the region. The Gallo-Roman town was established with the name , under Caesar Augustus and is famous for its Roman theatre. According to a common use in Roman Gaul, the bona (Gaulish word for “foundation, town”) was dedicated to the Roman emperor, like Augustodunum (Autun), Augustonemetum (Clermont-Ferrand) or Augustodurum (Bayeux), etc. The phonetic evolution from the element Julio- to Lille- can be explained by the analogy with the French word for island: île, with the article agglutination l = the, that makes sense with the word bona > bonne, which means "good" in French, so "l'île bonne" = the good island. Their original main oppidum could have been Caudebec-en-Caux or Fécamp, according to the archeological excavations and the numerous Gaulish artefacts, that were discovered in both towns. Medieval In the Merovingian period, the Pays de Caux became distinct from Talou: the ancient city of the Caletes separated into entities or ‘countries’ in the sense of the Latin pagus. From the creation of the county of Rouen and of the Duchy of Normandy in 911, the Vikings settled a great number of people in the region and left an enduring legacy in the Cauchois dialect but also in the ethnic makeup of the Cauchois Normans. Manoirs and châteaux of the 15th and 16th centuries A manoir (manor house) is in principle, the residence of a seigniorial lord though, in practice, the term now includes country houses of the gentry. As a rule, they are not fortified. Since the Hundred Years' War, country houses have not had ramparts and towers. Artillery has rendered them obsolete. The peace and prosperity which were recovered following 1450, offered the option of reconstructing country houses and local materials such as flint and limestone were used. The owners could allow themselves to follow Renaissance style. Most Norman manoirs have a dovecote in the courtyard. A study by historians revealed 635 dove cotes in the three arrondissements of Dieppe, Le Havre and Rouen. Most are round and are permanent structures. The rarities are polygonal and timber-framed. A few to be noted are: Château d'Etelan, Saint-Maurice-d'Etelan, 1494 Manoir de la Bouteillerie, Rouelles, Le Havre, 1531, dovecote of 1631 Manoir Dubocage de Bléville, Dollemard, Le Havre, 1516 Manoir d'Harquebosc, Harfleur-Beaulieu Manoir de Reauté, between Octeville and Montivilliers, takes its name from a family of the 16th century.