The Old Palace, also called Kaiser Wilhelm Palace, 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. Damaged during the Allied bombing in World War II, the Old Palace was rebuilt from 1963 to 1964 as part of the Forum Fridericianum. Since then, the listed building has been home to the Law Faculty of the Humboldt-Universität.