Landévennec Abbey (Abbaye de Landévennec) was a monastery now in Finistère. It existed from its foundation at Landévennec, traditionally by Winwaloe in the late fifth century, to 1793, when the monastery was abandoned and sold. In 1950 it was bought and rebuilt by the Benedictines of Kerbénéat. It became a Benedictine foundation in the eighth century. It was attacked and burned by Vikings in 913; it was subsequently rebuilt in stone.
Today the abbey museum features an exhibition that examines how excavations are carried out as well as outlining the site’s major developments through history.
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.