Ali Pasha Castle is named after Ali Pasha of Tepelenë who resided there until 1820. The current fortress was rebuilt in 1819 from its surface with 3 towers.
Built under Venetian dominion in the late 15th or early 16th century, it provided a stronghold for the Venetians on Corfu to exploit fishing, grazing, olives and timber in and around Butrint. The castle was the centrepiece of numerous conflicts with the burgeoning Ottoman Empire, and changed hands on several occasions. It was finally destroyed by a retreating French army in 1798 to prevent it falling into the hands of Ali Pasha.
The fortification attributed to Ali Pasha at Butrint lies some 2.4 kilometres due west at the mouth of the Vivari Channel. This in itself began life in the late 17th or early 18th century as a fortified estate centre belonging to a Corfiote family that farmed land on the plains south of the ancient city. Ali Pasha seized control of the structure around 1804 and carried out a series of defensive improvements including the installation of gun batteries. Given its small size it is unlikely that the fort functioned as anything more than a control over access from the sea to Butrint, and it can not be compared to Ali's more redoubtable fortresses in the region at Tepelena, Gjirokastra and Ioannina.
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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.