The Oliemolen (literally Oilmill) is a 16th-century watermill located at the foot of a steep hill in the Aambos. The name already tells us much about its function, extracting oil, but this was not always the case, it first function as a volmolen (a mill to press wool). The mill is fed by the Caumerbeek.
A copy, dating to May 31, 1710, of the original deed exists, indicating the mill was founded on May 9, 1502, commissioned by the family Van Scheasberg. However, names of notables on the deed do not correlate with the people in those positions in the beginning of the 16th century; possibly a '0' was mistaken for a '6', making the founding year 1562.
In 1829 a license was granted for the mill to mill grain, which became to only use of the mill in 1904.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.