Pollentia was founded by the consul Qintus Caecilius Metellus in 123 BC in the strategic location between the bays of Pollenca and Alcudia. It was the most important city in the Balearics duing the Roman period and covered an area of 15-20 hectares.
This area suffered a devastating fire in the 3rd century AD, but the city was not depopulated, since the construction of a fortification in the fifth century AD has been documented in the same forum. In the following centuries, the Pollentia site was partially or totally unpopulated, with the Christian medieval population settling down a bit further north, in the present town of Alcúdia. Excavations, since the 16th century, but especially since the beginning of the 20th century, have occurred mainly in the area of Sa Portella (a residential district), Camp d'en França (the city forum and the tabernae), and in the Roman theater.
There is also a museum, the Museu Monografic de Pollentia in the centre of Alcudia (by the church) which displays many of the objects found on the site.
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.