The first Gråsten Palace was a small hunting lodge built in the middle of the 1500s. After it burned down in 1603, a new palace was built approximately where the south wing of the current palace is located. Chancellor Count Frederik Ahlefeldt, who was the owner of Gråsten Palace from 1662-1682, and his son built a huge baroque palace shortly before the beginning of the 1700’s. It, too, burned down in 1757. Only the palace chapel and a few pavilions remained. The current palace thus dates back to 1759, when a new south wing was built, and to 1842, when the central building was added. At the beginning of the last century, considerable renovations were made.
The Augustenborg family owned Gråsten Palace from 1725 to 1852, when it was acquired by Frederik VII. After 1864, the palace was again occupied by the Augustenborg family. In 1920, the Danish state acquired Gråsten Palace, and for a period it was used as a court house, housing for judges and police chiefs, and a library. In 1935, after an extensive restoration, Gråsten Palace was handed over to be the summer residence for the then-Crown Prince Couple (later King Frederik IX and Queen Ingrid).
King Frederik and Queen Ingrid spent the summers at Gråsten Palace. After Queen Ingrid’s death, the palace passed to HM The Queen, who continues the tradition of using it during the summer.
References:Duino Castle was built by the Wallsee family in 1389 on the cliffs overlooking the Gulf of Trieste. It replaced an older castle from the 11th century. Over time, the Wallsee family disappeared and the castle, after having been used as a prison, became the residence of the Luogar and Hofer.
At the end of the 19th century it became the property of Prince Alexander von Thurn und Taxis from the Czech branch of the House of Thurn and Taxis. It remains with the family to this day with his great-grandson Prince Carlo Alessandro della Torre e Tasso, Duke of Castel Duino the current owner. The castle has been opened to the public as a museum and park.