Burg Helfenberg Gossau, Medieval castle ruin in Gossau, Switzerland
The stone remains of Burg Helfenberg stand on a steep slope above the Glatt River between Flawil and Gossau in St. Gallen canton.
Built in the first half of the 13th century, the castle served as residence for the Gielen von Glattbrugg family until 1388 when they transferred it to St. Gallen Abbey.
The castle ruins represent the medieval territorial administration system of St. Gallen region, where noble families managed local territories under abbey supervision.
Visitors can reach the castle site by following marked hiking trails from Gossau, with archaeological excavations from 1935 to 1937 making the ruins accessible.
The castle's destruction in 1407 by rebellious farmers marked a turning point in the Appenzell Wars, leading to significant political changes in eastern Switzerland.
Location: canton St. Gallen
GPS coordinates: 47.40140,9.22278
Latest update: March 4, 2025 04:51
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