Herrenhausen Palace was built in the Baroque style and served as the summer residence of the royal house of Hanover in the 19th century. The palace and the court garden were carefully maintained until the maintenance had to be reduced by the burdens of the Seven Years' War. After Hanover was declared a kingdom, it was redesigned in the style of classicism.
However, even Herrenhausen Palace could not escape the great destruction caused by air raids in the Second World War, so that the main building burnt down completely in 1943. In the course of the reconstruction, the façade was rebuilt in the classicist style and a museum as well as a conference and congress centre were set up.