Pernegg Abbey was founded as a Premonstratensian nunnery in 1153. It was founded by Ekbert and Ulrich, who also founded the Geras Abbey about 10 kilometres from Pernegg.
Pernegg became a community of canons in 1584. In 1700 it became an abbey but was dissolved in 1783 under the reforms of Emperor Joseph II. In the mid-19th century the premises were acquired by Geras Abbey. Since 1995 they have been used as a retreat and seminar centre for the monastery at Geras.
References:The Gravensteen is a castle in Ghent originating from the Middle Ages. The name means 'castle of the counts' in Dutch. Arnulf I (918–965), Count of Flanders, was the first to fortify this place, building a medieval bastion on this high sand dune, naturally protected by the river Leie and its marshy banks. This bastion consisted of a central wooden building and several surrounding buildings, also in wood.
In the early 11th century, the wooden building was replaced by a stone residence, consisting of three large halls that made up three storeys, connected by a stone stairwell. The monumental stone staircase, the light openings, the fireplaces built into the walls and the latrines were signs of considerable luxury and comfort in those days. There was probably also a tower.