Valleberga Church is the only known fortified round church in Scania. It was built of limestone in the middle of the 12th century. A reason for the building of the round church was that the master mason of the church, Carl Stenmester, also built churches on Bornholm, where round churches were common. The font was cut by the master of Tryde and shows one of the legends about Saint Peter and Paul of Tarsus.
In 1791, the round church was demolished and extensions were made to the north, west and south. These extensions were demolished in 1908-1910 when the round church was restored and a large cathedral-like extension was made to the west, including a new tower.
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.