The Duchy of Limburg or Limbourg was a state of the Holy Roman Empire. Its main territory including the capital Limbourg is today located within the Belgian province of Liège, with a small part in the neighbouring province of Belgian Limburg, within the east of Voeren. Of the various places known as Limburg, it is the Duchy of Limburg which is the origin of the pungent-smelling soft cheese known as Limburger, and today made in many places. (In modern Belgium, such cheese is known as Herve cheese, after the town of that name within the duchy.)