Rüegsau

Rüegsau is first mentioned in 1139 as Ruxow. In 1229 it was mentioned as Ruchisowe. The name comes from ruggere aue, in modern German ruhe Aue, meaning calm floodplain. From the late 13th century until 1528 it was the location of Rüegsau Priory, a Benedictine nunnery.

The oldest trace of a settlement is a neolithic artifact discovered in Rüegsau village. The first trace of a modern settlement is in the first half of the 12th century when Rüegsau Abbey was probably founded. While very little is known about the early history of the Abbey, it was probably founded by Thüring von Lützelflüh around the same time that he founded Trub Abbey. It is unknown whether the village grew up around the Abbey or was already here when the Abbey was founded.

Wikipedia