New Castle Baden-Baden

Significant parts of the building include the three-story main castle, the coach house, the kitchen building, and the archive tower (all Renaissance buildings from the 16th century), as well as the Cavalier's House in the castle courtyard (1709), which is entered through a 15th-century gatehouse located to the west. A castle garden with rare plants and trees borders the New Castle to the east. From its 130-meter-long viewing terrace (built in 1670), one can access terraced gardens with a variety of exotic plants.

Around 1370, a castle complex was built on older walls above the market square of the city of Baden, which had been granted city rights in the second half of the 13th century. Around 1479, Margrave Christoph I converted the complex into a residence, succeeding Hohenbaden Castle. Since 1529, the New Castle housed the archives of the Margraves of Baden.

When the castle was destroyed by the French in the War of the Spanish Succession, Margrave Louis William moved the seat of government to Rastatt and built a new residence with Rastatt Castle.

Incorporating the still existing outer walls, the New Castle in Baden-Baden was rebuilt in the early 18th century.

In the 19th century, it served as a summer residence for the Grand Dukes. Grand Duke Leopold had the castle restored by Friedrich Theodor Fischer from 1843–47. The state rooms were decorated in a historicist Renaissance style.

In 1919, the New Castle was assigned to the House of Baden as private property. It housed the art treasures from the other castles that had been left to the former ruling house, including the collections of the older Zähringer Museum.

In 1946, the (South) Baden Ministry of Culture in Freiburg, with the support of Berthold von Baden, established a Baden Historical Museum in the New Castle, which also bore the name Zähringermuseum (predecessor of the Wehrgeschichtliches Museum Rastatt). After the end of this joint project, the (new) Zähringer Museum was opened in 1960, which effectively existed until 1981. In 1995, the family's collections and large parts of the inventory were auctioned by Sotheby's with great media interest (Margrave Auction).

After being sold by the family of Baden in October 2003, the castle became the property of a Kuwaiti group of companies. Businesswoman Fawzia al-Hassawi developed plans for a new use of the former ancestral seat of the House of Baden and former widow's and summer residence of the Margraves – from a luxury hotel to a holiday home for her family.

In April 2010, the city of Baden-Baden granted permission for the conversion of the New Castle into a luxury hotel, which is scheduled to open in 2013.