What is "marollen"

The Marolles ( French) or Marollen ( Dutch) is an old neighbourhood of Brussels, situated between the Palace of Justice and the south railway station. In the heart of Marollen can be found the Église de la Chapelle/ Kapellekerk and the Place du Jeu de balle/ Vossenplein. Major arteries of the neighborhood include the rue Haute/Hoogstraat, the rue Blaesstraat and the rue des Tanneurs/Huidevetterstraat. Inhabitants of the neighbourhood are called Marolliens. The dialect known as Marols (marollien) was spoken in this area.