Tettnang Palace - usually referred to as Neues Schloss - is one of three castles in Tettnang. Originally a fort stood on the site of the current castle. From 1260 under 1780 it was the residence of the Counts of Montfort. The old fort was destroyed in the Thirty Years' War in 1633. Count Anton III of Montfort subsequently started rebuilding the castle in 1712, hiring the architect Christoph Gessinger, a Benedictine friar from Isny, to draught designs for a new castle. His aim was to tear down the remains of the mediaeval fort to make way for a completely new palace. In 1728 construction work came to a grinding halt when the funds of the Count ran dry. Count Anton died in 1733 and the castle remained unfinished.
A major section of the facade along with parts of the interior decoration were damaged by fire in 1753. Under the partronage of Count Franz Xaver, restoration work was subsequently completed in 1770. The fine sculptures and paintwork inside the castle were carried out by Joseph Anton Feuchtmayer, Käte Schaller-Härlin and Andreas Brugger. Jakob Emele was responsible for the rococo work.
When the county of Tettnang was sold to Austria in 1770 (to pay off debts), most of the interior fittings were sold and the castle passed into public ownership. When Tettnang was handed over to Bavaria as part of the Peace of Pressburg, the castle returned into German ownership.
Final restoration of the castle was carried out between 1960 and 1982. In 1997 the castle was opened to the public.References:
The Petersberg Citadel is one of the largest extant early-modern citadels in Europe and covers the whole north-western part of the Erfurt city centre. It was built after 1665 on Petersberg hill and was in military use until 1963. It dates from a time when Erfurt was ruled by the Electors of Mainz and is a unique example of the European style of fortress construction. Beneath the citadel is an underground maze of passageways that can be visited on guided tours organised by Erfurt Tourist Office.
The citadel was originally built on the site of a medieval Benedictine Monastery and the earliest parts of the complex date from the 12th century. Erfurt has also been ruled by Sweden, Prussia, Napoleon, the German Empire, the Nazis, and post-World War II Soviet occupying forces, and it was part of the German Democratic Republic (East Germany). All of these regimes used Petersberg Citadel and had an influence on its development. The baroque fortress was in military use until 1963. Since German reunification in 1990, the citadel has undergone significant restoration and it is now open to the public as a historic site.