Maidla manor (Wrangelstein) traces its history back to at least 1465, although the village is mentioned for the first time as early as the 13th century, in the Danish Census Book. The manor estate has over the centuries belonged to several different aristocratic families. The present baroque manor house was built in 1764-1767 according to plans by architect J. P. Dürschmidt, during the ownership of the Wrangel family. After the Estonian land reform that followed the declaration of independence of Estonia in 1919, the manor was converted into a school. The manor is a fine example of baroque manor house architecture in Estonia. Details such as the finely carved door, interior stucco decoration and the pediment decorated with coats-of-arms, survive.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.