Piding, Germany
12th century
Kirchhausen, Germany
1570
Train, Germany
15th century
Fronberg, Germany
c. 1305
Hermaringen, Germany
1346
Wallerstein, Germany
1805
Neidenstein, Germany
13th century
Lemberg, Germany
13th century
Wachtberg, Germany
9th century
Dellmensingen, Germany
1685
Untersulmetingen, Germany
1538-1542
Waldershof, Germany
13th century
Rieshofen, Germany
c. 1290
Niederzier, Germany
1280
Lambrecht, Germany
1246
Weilerswist, Germany
14th century
Zülpich, Germany
14th century
Lauf, Germany
1300
Blankenheim, Germany
11th century
Burghaslach, Germany
1569
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.