Northwestern Switzerland, Switzerland Alt Schauenburg


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Alt-Schauenburg is a ruined castle in the commune of Frenkendorf, Switzerland. It is located near the border of France and Germany, and little of the castle remains because of geological events.


There were two Schauenburg castles near Frenkendorf, Alt -Schauenburg about 1km southwest of the village on the top of Chleifl├╝eli hill and Neu (or New)-Schauenburg to the west. Alt-Schauenburg was probably built around 1275 as the seat of a junior branch of the Schauenburg family. The castle was occupied for less than a century. The 1356 Basel earthquake destroyed much of the castle and shortly thereafter the ruins were abandoned. The ruins were gradually buried, until 1949-50 when they were excavated and repaired. In 1976-77 additional construction helped preserve the site.

Origin of the name

Neu-Schauenburg was built before Alt-Schauenburg, but because Alt-Schauenburg was destroyed and abandoned first, it came to be known as the old or alt- castle.

Castle site

Many of the walls are still standing following the two conservation projects. The southern approach was guarded by a shield wall. One corner of the wall was protected by a semi-circular avant-corps. Inside the shield wall, the castle tower and residence hall were rectangular.




Alt Schauenburg