Deer Abbey was a Cistercian monastery in Buchan. It was founded in 1219 by the patronage William Comyn, Earl of Buchan, who is also buried there. There was an earlier community of Scottish monks or priests. The notitiae on the margins of the Book of Deer record grants made to the Scottish religious community in the 12th century and a claim that it was founded by Saint Columba and Saint Drostan. The old religious community was probably absorbed by the new foundation. The history of the abbey after the 1210s is obscure until the 16th century, when it was beginning to be secularized. The abbey was turned into a secular lordship for Commendator Robert Keith II in 1587.
The Abbey was included in the lands obtained by Lord Pitfour and became part of the Pitfour estate in 1766. His son, the third laird built the 5 metres high enclosing wall in 1809 and used the grounds as an orchard. The fifth laird had the site cleared and used the stones from the Abbey building to have a mausoleum constructed in which to bury his daughter when she died aged 21 years in 1851. The only other person buried in the mausoleum was Ferguson's mother-in-law. The mausoleum was destroyed in the 1930s when the Abbey was transferred to Roman Catholic ownership and parts of it were used to build an entrance; however this was undertaken without disturbing the graves of Lady Langford and Ferguson's daughter, Eliza.
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.