Tõstamaa Manor was first mentioned in 1553 as Testama, when it belonged to the Bishop of Ösel–Wiek. Lated the owners have been the Kursells, Helmersens and Staël von Holsteins. The Early-Classical two-storey main building was built in 1804. During a renovation in 1997, several original painted ceilings were uncovered. The manor was dispossessed in 1919 and since 1921 a local school (Tõstamaa Keskkool) is operating in the main building. The most famous inhabitant of the manor is probably Alexander von Staël-Holstein, who grew up and spent his childhood at the manor.
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.