The New Palace (das Neue Schloss) is built in late Baroque style. From 1746 to 1797 and from 1805 to 1807, it served as a residence of the kings of Württemberg. The palace stands adjacent to the Old Castle.
The castle was almost destroyed by Allied bombing during World War II and was reconstructed between 1958 and 1964. During this time most of the inside of the castle was also restored and the building was used by the Baden-Württemberg State Parliament. Today it is used by the State Ministries of Finance and Education. Public tours of the building are only permitted by special arrangement.
Schlossplatz is adjacent to two other popular squares in Stuttgart: Karlsplatz to the south and Schillerplatz to the south west. The former German President, Richard von Weizsäcker was born in the New Castle on April 15, 1920.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.