The present Ekenäs castle was built in the 17th century on top of the foundations of a medieval fortress from the 14th century. Ekenäs is one of the best preserved renaissance castles in Sweden with its three impressive shingled towers. Its military character is clearly shown by the surrounding moat and its situation on a cliff on the shore of a lake which has since been drained. One of the first owners of the property was Svante Sture, who lived during the reign of King Erik XIV. Sture built the first stonehouse built on this rock in 1562. Baron Peder Banér, councellor of the King, owned Ekenäs in 1630 - 1644. The castle was built in a Renaissance style.
Ekenäs is, and has always been, a privately owned castle. Visitors are welcome year-round, however, the castle itself is only open during the summer. A jousting tournament and Medieval festival has been held here in May/June every year since 1993.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.