The Castle of Burgos is located on the hill of San Miguel to 75 m above the city of Burgos. According to excavations the castle attributes to the Visigoths, and its oldest parts, to the Romans. It is believed that the fortress was already built back in 865 when Muslims amounted to the Castilian plateau led by Al-Mondzir obliterating. Twenty years later the Asturian monarch Alfonso III gives order to Count Diego Rodríguez Porcelos to repopulate and re-fortifying Burgos because had credited his military virtues in the Battle of Briviesca and in defend Pancorbo.
The growing importance of the city requires a great fortress, whose perimeter is well documented. Probably during the reign of Alfonso VIII of Castile occurs the first great transformation, participating experts builders to the Mudéjar taste of the time. The Castilian king Henry IV makes the second reform, mainly for beautification, in order to transform it into palace: halls, chambers and chapel.
During the Early Modern Age and because both the evolution of military techniques, as the remoteness of the war zones, loses its former defensive function. In its enclosure was settled the first training school for gunners that have been in Spain, reaching produce twenty quintals of gunpowder daily in 1542. This was about secondary activities.
During the French occupation, the June 15, 1813, the French army decided to leave the Castle of Burgos, and they destroyed it with explosives. The explosion resulted in the almost total destruction of all the castle grounds. The remains of the fortress, in state of ruins, has allowed its qualification as a museum, opened in 2003, or interpretation center, and it can also visit the well and the underground tunnels, known as Cueva del Moro.
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.