Wernstein Castle was built between 1362 and 1376 to replace a previous destroyed structure. It was first mentioned in a document when Heinrich von Künsberg endowed the chapel in Veitlahm with the provision that the local clergy should read weekly masses 'at Wernstein.' The castle has been continuously owned by the von Künsberg family since then. It was a fief of the Burggraves of Nuremberg, and the first recorded feudal letter dates back to January 20, 1395, when Ulrich von Künsberg was granted 'Wernstein the fortress and the enclosure' by Burggraf Johann III. In the 16th century, Hans Friedrich von Künsberg transformed the castle into a magnificent Renaissance palace. The castle suffered damage during the Thirty Years' War but was later repaired. Wernstein Castle is considered one of the most beautiful hilltop castles in the Franconian region. It is still inhabited by the descendants of its builders and is not open to the public for visits.
The Royal Palace was built in the first half of the 19th century as the Norwegian residence of King Charles III, who also reigned as king of Sweden and otherwise resided there, and is the official residence of the present Norwegian monarch. The crown prince resides at Skaugum in Asker west of Oslo. The palace has 173 rooms.
Until the completion of the Royal Palace, Norwegian royalty resided in Paleet, the magnificent town house in Christiania that the wealthy merchant Bernt Anker bequeathed to the State in 1805 to be used as a royal residence. During the last years of the union with Denmark it was used by the viceroys of Norway, and in 1814 by the first king of independent Norway, Christian Frederick.