Bibiton Castle

Bibiton Castle is the ruin of a medieval water castle in the canton of St. Gallen, Switzerland, set in the Linth plain between Kaltbrunn and Benken. Only remnants of walls and foundations survive, but the site is one of the more interesting traces of knightly settlement in eastern Switzerland.

How did Bibiton Castle come about?

The castle was built in the early 13th century, roughly between 1200 and 1250. The Counts of Rapperswil are considered its builders. As protectors (Kastvögte) of Einsiedeln Abbey, they raised several defensive structures in the Linth plain at that time, Grynau Castle among them. The exact construction date is uncertain, and sources give it only as an approximation.

Bibiton was a water castle, meaning it stood in wet, marshy terrain where water added to its defences. This was a common solution on flat land, where no natural hill was available for a fortified residence.

Who lived at the castle?

In the 14th century Bibiton became the seat of vassals of the Counts of Toggenburg. Records from 1358 mention a squire (Edelknecht) named Kraft Schnode living here. Until 1393 the castle was home to the Austrian noble family of Bruchi. Within a few decades, the site thus reflected shifting power among the region's noble houses.

Destruction and abandonment

The castle was destroyed in 1444 during the Old Zurich War, the conflict between Zurich and the other members of the Swiss Confederacy. It was not rebuilt and was abandoned in the 15th century. Over time it fell into ruin.

Archaeological work

In 1928 local historian Johann Fäh acquired the site. He carried out excavations in 1936 and 1937, which uncovered the remains of the structure and clarified its layout. Thanks to this work, the ruin is readable to visitors today.

How to reach the Bibiton ruins

The ruins lie beyond the Böschkanal canal, about 400 metres north of Benken railway station. It makes a good short walk for travellers arriving by train. Admission is free and there are no opening-time restrictions, so you can visit at any time of day. The coordinates are roughly 47.209 N, 9.010 E.

Frequently asked questions

Is entry to the Bibiton ruins free? Yes. Admission is free and there are no opening hours.

Who built the castle? According to the sources, the Counts of Rapperswil, in the early 13th century, as part of a chain of fortifications in the Linth plain.

When was it destroyed? In 1444, during the Old Zurich War. It was never rebuilt.

Where exactly is it? In the Linth plain between Benken and Kaltbrunn in the canton of St. Gallen, about 400 metres north of Benken station.

Can I get there by train? Yes. The nearest station is Benken, a short walk from the ruins.

Who is this place for?

We recommend Bibiton to lovers of medieval history, castle and ruin enthusiasts, and anyone looking for lesser-known corners of Switzerland. It is a quiet stop on a walk across the Linth plain, with no crowds and no tickets. Bring sturdy shoes, as the surroundings can be damp, and take a moment to imagine the fortress once surrounded by water. The ruin has little tourist infrastructure, so it pairs well with a longer walk in the area.