Plaines Wilhems is a district of Mauritius. It is the most populous district, with its population estimated at 387,372 . The district is mainly urban; it consists of four towns, the village of Midlands and part of two other villages. The Plaines Wilhems district does not have a District Council; it has four Municipal Town Councils. The towns are Beau-Bassin Rose-Hill, Curepipe, Quatre Bornes and Vacoas-Phoenix. The villages are Midlands, Cascavelle (East - West in Rivière Noire district) and Moka (West- East in Moka district). The district was named after Wilhem Leicknig. Of Prussian origin, he settled on the island of Mauritius, then known as Isle de France, in 1721.