“PALAIS DES PRINZ V.[ON] PREUSSEN IN BERLIN”, called Altes Palais

The Old Palace (German: Altes Palais), also called Kaiser Wilhelm Palace (Kaiser-Wilhelm-Palais), is a former Royal Prussian residence on Unter den Linden boulevard in Mitte, the historic heart and city center of Berlin. It was built between 1834 to 1837 by order of Prince William of Prussia, who later became German Emperor William I, according to plans by Carl Ferdinand Langhans in Neoclassical style.