Stein Castle was built on a rocky promontory above Baden gorge some time before 1000. In the late 11th century the castle came to the Lenzburg family. By the early 12th Century, the cadet line that lived in the castle called themselves the Counts of Baden. In 1172, the castle was inherited by the Kyburg family. When that family died out in 1263, the castle was inherited by the Habsburgs in 1264.
The castle was occupied by a bailiff and was the seat of the Austrian administration for Vorderösterreich (Further Austria) and housed the archive. The castle was besieged and destroyed in 1415 by the Swiss Confederation. It was rebuilt in 1658-70 but was demolished in 1712. It remains in ruins since that time.
References:Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).