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:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.