Gladbach Abbey was a Benedictine abbey founded in 974 by Archbishop Gero of Cologne and the monk Sandrad from Trier. It was named after the Gladbach, a narrow brook that now runs underground. The abbey and its adjoining villages grew into the town of Gladbach, incorporated in the 1360s, the origin of the present city of Mönchengladbach in North Rhine-Westphalia.
In 1802 the abbey was occupied by troops under the French occupation and secularised; its great library was dispersed. From 1805 to 1835 it was used as a textile mill.
In 1835 the city authorities acquired the main building to replace the old Rathaus, which was demolished. This now constitutes the present Rathaus Abtei. The remaining monastic buildings were also acquired by the city one by one, for the accommodation of municipal offices.
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.