Penijõe (Pennijöggi) estate was established in the first half of the 17th century. Before the Estonian Declaration of Independence in 1918, the manor had belonged to different Baltic German families. Between 1935-1955, the manor housed an agricultural school, and was later divided into flats. In 2000 the building was renovated.
The current building was erected in the first half of the 18th century. In the early 19th century, a second floor and the portico was added and the manor received its current classicist look. The manor is unusual in that the second floor is wooden rather than made of stone.
The manor is located in Matsalu National Park and today houses the Matsalu Nature Centre.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.