Clervaux Castle dates back to the 12th century. The oldest parts of the castle were built by Gerard, Count of Sponheim, a brother of the Count of Vianden. The large palace and the rounded towers are probably from around 1400 when the prosperous Lords of Brandenbourg lived there.
In 1634, Claude of Lannoy built the reception halls, including the large Knights' Hall in the Spanish style of Flanders. In 1660, stables, storerooms and administrative buildings were added. Finally, in the 18th century, new stables were built.
Over the years, like other castles in Luxembourg, Clervaux fell into disrepair although it was partly restored and used as a hotel before it was finally destroyed in the Second World War during the Battle of Clervaux (December 16 to 18, 1944), part of the Battle of the Bulge.
After being fully restored after the war, the castle is now used partly as a museum and partly for housing the local administration. The south wing houses an exhibition of models of Luxembourg's castles, the old kitchen in the Brandenbourg House is a museum devoted to the Battle of the Ardennes while the upper floor house display photographs by Edward Steichen in an exhibition entitled The Family of Man. The remaining rooms are used for the services of the local administration.
It houses the commune's administrative offices as well as a museum containing an exhibition of Edward Steichen's photographs. The castle is open to visitors.
References:Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.