Egelund Castle is a former royal residence built by Queen Dowager Louise Josephine from 1915 to 1917. Today it is owned by Dansk Arbejdsgiverforening and used as a congress and training centre.
The architect was Carl Harild and the garden was designed by landscape architect Edvard Glæsel and later J. P. Andersen as well as Egelund's resident gardener Hansen. After the queen's death in 1926, the property was inherited by Prince Gustav of Denmark, who remained unmarried and had no children. After his death in 1944, the estate passed to Knud, Hereditary Prince of Denmark and Princess Caroline-Mathilde of Denmark. In 1954 Dansk Arbejdsgiverforening bought Egelund from the heirs to use it as a congress and training venue.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.