The Basilica of Saint-Romain in Blaye was an important Merovingian basilica, the resting-place of Charibert II, a son of Clotaire II who was briefly king of Aquitaine from 629 to his death in 632, and of his son. According to the 12th-century Chanson de Roland contained the body and relics of the Carolingian folk-hero Roland, who was a seigneur of Blaye in the eighth century.
The nominal patron of the basilica, belonging to the Canons Regular of Saint Augustine, remained the local 4th-century martyr Saint Romanus of Blaye; here the pilgrims bound for Santiago de Compostela paused before taking to boats to cross to Bordeaux.
In 848, the fort and its surrounding habitations were laid waste by the Viking chief Hasting.
Some vestiges of the structure remain within the Vauban fortress at Blaye, which formed part of the traditional defenses of the Gironde estuary.
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.