Kläckeberga Church was built in the early 13th century, but was subsequently burned by the Danes in 1611. Today, the interior of the church consists mostly of furnishings and objects from the 18th century and later.
The church originally had three floors: a cellar, main floor (the present church hall) and a larger hall above that. In addition, there was once a shooting attic above that hall. So Kläckeberga Church was also once a fortified church, surrounded by several earthwork walls and moats. Historical notes from the 15th century also indicate that various garrisons were stationed in this church during the many battles for Kalmar and Kalmar Castle.
Today the most significant artefact in the church is a altarpiece painted by Herman Han in 1616. It was transferred to Sweden as a loot from Poland during the Thirty Years War.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.