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Greifenberg Castle is a ruined castle in the municipality of Bäretswil and the canton of Zürich in Switzerland. It is a Swiss heritage site of national significance.
References
Greifenberg Castle Wikipedia(Text) CC BY-SA
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Greifenberg Castle is a ruined castle in the municipality of Bäretswil and the canton of Zürich in Switzerland. It is a Swiss heritage site of national significance.