The Duchy of Cleves (German: Herzogtum Kleve; Dutch: Hertogdom Kleef) was a State of the Holy Roman Empire emerged from the mediaeval Duisburggau. It was situated in the northern Rhineland on both sides of the Lower Rhine, around its capital Cleves and the towns of Wesel, Kalkar, Xanten, Emmerich, Rees and Duisburg bordering the lands of the Prince-Bishopric of Münster in the east and the Duchy of Brabant in the west.