Royaumont Abbey is a former Cistercian abbey built between 1228 and 1235 with the support of Louis IX. Several members of the French Royal family were buried here (instead of Saint Denis Basilica), for example, three children and two grandchildren of Louis IX.
The abbey was dissolved in 1791 during the French Revolution and the stones were partly used to build a factory. However, the sacristy, cloister, and refectory remained intact.
In 1836 and 1838, respectively, two operas by German composer Friedrich von Flotow opened at Royaumont—Sérafine and Le Comte de Saint-Mégrin.
In the early 20th century, the abbey was bought by the Goüin family who in 1964 created the Royaumont Foundation, the first private French cultural foundation. Today, the abbey is a tourist attraction and also serves as a cultural centre.
From January 1915 to March 1919 the Abbey was turned into a voluntary hospital, operated by Scottish Women's Hospitals, under the direction of the French Red Cross. It was especially noted for its performance treating soldiers involved in the Battle of the Somme.
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.