The Château de Greifenstein is a ruined castle in the commune of Saverne. The Grand-Greifenstein was, without doubt, founded in the first half of the 12th century by the knight Meribodo de Greifenstein who had close links to the Ochenstein family. The Petit-Greifenstein dates from the end of the 13th century or start of the 14th century.
Visitors can distinguish two castles separated by a large ditch. The older part has the largest keep in Alsace with 13 metres a side. A renovated tower stands between the two keeps at the centre of the site. It was probably part of Grand-Greifenstein. From the terrace there is an unimpeded view of Saverne, the Château du Haut-Barr, the Château du Grand-Geroldseck, the valley of the Zorn and the Saint-Vit chapel.
To reach the castle, leave Saverne on the D132 road towards Lutzelbourg and turn right towards the Ramsthal lake. Then follow the Club Vosgien path signposted by a blue rectangle.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.