Hesperange Castle probably dates from the early 13th century when the Counts of Luxembourg gave Hesperange to the Lords of Rodenmacher who sided with the French when the Burgundians conquored Luxembourg in 1443. Maximilian of Austria dismantled the castle in 1480 and 1482 after battles with Gerard of Rodenmacher. In 1492, he transferred it to the Lords of Baden who had to pawn it in 1692 and could only reclaim it in 1740.
After the French captured the castle in 1796, the French government nationalized it and sold it by auction in 1798. Later parts of the ruins were sold individually and by 1820 seven houses stood on the castle grounds. Now a national monument, the ruins are still privately owned.
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.