Mons, Hainaut, Wallonia, Belgium Mons, known in Flemish as Bergen, is today one of the main cities of Wallonia and Belgium. In the south of the country, Mons is entirely French-speaking. It was of great importance during the Spanish period and was the site of several significant events during the Eighty Years’ War, and between… Leer más The siege of Mons in 1572