The Vordingborg castle was built in 1175 by King King Valdemar I as a defensive castle and as a base from which to launch raids against the German coast. His half-brother built another castle in a remote location, which is now Copenhagen. King Valdemar II similarly used the castle for expansion into the Baltic, and in 1241 it was where he created the reformed legal system, the Law of Jutland. By the time of King Valdemar IV, the castle had nine towers and a defensive wall 800 metres long. The castle was the birthplace of Queen Margaret I, daughter of King Valdemar IV, in 1353.
Large parts of the castle were demolished after the Swedish wars had ended, in order to construct a palace for Prince George, son ofKing Frederick III. The prince never took up residence, and the palace too was demolished in the 18th century. Three manors were constructed nearby, including Iselingen, which became a meeting place for many leading artists and scientists during the 1800s.
Today Vordingborg Castle is a ruin, although parts of the fourteenth century ring walls remain. The only fully preserved part of the castle, the 26 meter tall Goose Tower (Gåsetårnet), is the symbol of the city. The name comes from the golden goose that perches on top of the tower's spire. Although legend has it that Valdemar Atterdag used the symbol to taunt the Hanseatic League, the truth is the goose was first erected in 1871. The tower was transferred into the national trust on December 24, 1808, and was thus the first, protected historic monument in Denmark.
Next to the castle is a botanical garden and also a museum. A larger museum is planned which will include information on all of Denmark's historical castles. Excavations of the castle ruins continue. Regular archaeological digs take place here. Many of the finds are displayed in the exhibition at the Danish Castle Centre (Danmarks Borgcenter).
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.