Rohan Castle (French: Château des Rohan, German: Rohan-Schloss), also known as Château Neuf (New Castle), is an eighteenth-century neoclassical palace in the city of Saverne in Alsace, France. It was one of the residences of Archbishops of Strasbourg, rulers of the Prince-Bishopric of Strasbourg, which was an ecclesiastical principality of the Holy Roman Empire from the 13th century until 1803. Various members of the princely Rohan family were Prince-Bishop in the 18th century. The 140 metre wide façade of red Vosges sandstone is considered to be one of the most impressive examples of its kind.