Perpignan Cathedral construction was begun in 1324 by King Sancho of Majorca, and later finished in the 15th century. It replaced the Cathedral of Elna, and therefore the church was at first the seat of the Bishop of Elne, and then, from 1602, of the Bishop of Perpignan.
The cathedral was built in the Catalan Gothic style, because of its association with the Kingdom of Majorca. It has a wide nave (80 meters long, 18 m wide, and 26 m tall) made of seven cross-vaults, and features a short transept and apse, whose vault features seven keys.
The cathedral's western façade was never finished. When being restored in the 19th and 20th centuries, the Gothic window of the façade was rebuilt, as it had previously been substituted by a simple rectangular opening. The façade also features a portico and clock-tower, which date from the 18th century.
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.