The Château des Rohan is a former castle and weapons factory now serving as a museum and cultural centre in the French town of Mutzig. The castle's history goes back to the fortification of the town in 1274 by Rudolph of Habsburg. The medieval castle was heavily destroyed by the Swedes in 1632, during the Thirty Years' War, after having already been assaulted by Ernst von Mansfeld's troops in 1622. The city's and castle's masters, during these times marked by frequent battles and rivalries between feudal families, were alternatively and sometimes simultaneously the bishops of Strasbourg and the House of Zweibrücken.
The castle as it now appears is a Baroque structure. It was inaugurated in its present shape in 1673 to serve as the residence of the bishop of Strasbourg, Franz Egon of Fürstenberg. Fürstenberg was succeeded by his brother Wilhelm Egon von Fürstenberg. After the family of Rohan took over the bishopric of Strasbourg, the castle served as a residence to the dukes Armand Gaston, François-Armand, Louis Constantin and Louis René Édouard de Rohan, between 1704 and 1790.
However, after the completion of the Palais Rohan of Strasbourg in 1742, the château, which had already been rivalled by the residences in Saverne, became only of secondary importance to the family. Mutzig's castle was disowned and pillaged during the French Revolution. In 1799, it was bought by the arms manufacturers, brothers Coulaux of Klingenthal who in 1801 opened their weapons factory in its walls.
The factory ran until the outbreak of the Franco-Prussian War in 1870. The castle was fortified again by the Germans in 1893. Today, the castle houses a cinema and a library as well as, since 1996, the municipal museum Musée régional d'armes displaying a vast collection of historic rifles.
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.