The majority of the state combined with Frankfurt am Main, the Waldeck area (Rhine-Province) and the old Prussian province of Hesse-Nassau to form the new state of Hesse following the Second World War. Excepted was the Montabaur district from Hessen-Nassau and that part of Hessen-Darmstadt on the left bank of the Rhine (Rhenish Hesse) became part of the Rhineland-Palatinate state. (Bad) Wimpfen — an exclave of Hessen-Darmstadt — became part of Baden-Württemberg, district of Sinsheim.