Mortemer Abbey was originally built in 1134 on land gifted to the Cistercians by Henry I of England. The stagnant water of the drainage lake, dug out by the monks to dry up the marshy land around the quick running Fouillebroc stream, was called 'dead mere', 'dead pond' - in modern French 'morte mare' - and gave the monastery its name.
The monks constructed what was then one of the largest Cistercian monastery in the world. Over the centuries, the abbey fell into decline and disrepair. It was rebuilt in the 17th Century, but the decline was irreversible and by 1790, when it was dissolved in the course of the French Revolution, only five monks remained.
The 12th century buildings were already more or less derelict by the time of the French Revolution, and subsequent use as a convenient source of cut stone for local construction reduced them to little more than a ruin. Apart from the cloisters, which are relatively intact, there remains only a shell.
The 17th century buildings by contrast are well preserved and open to visitors, with guided tours available most of the year. The abbey site also has a well-maintained 17th century dovecote, which was also used as a gaol house in the 18th and 19th centuries.
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.