County of Artois
…Belgium. Its territory has an area of around 4,000 square kilometres (1,500 sq mi) and a population of about one million. Its principal cities include Arras (Dutch: Atrecht), Calais (Dutch: Kales), Boulogne-sur-Mer (Dutch: Bonen), Saint-Omer (West Flemish: Sint-Omaars, Lens and Béthune. It forms the interior…