William I built the Walferdange Castle as a stud farm for breeding horses between 1824 and 1828. His son, William II, converted it into a royal residence where he stayed when visiting Luxembourg. It was however his son Prince Henry and his wife Amalia who extended the castle and its gardens while they lived there from 1853. Prince Henry, who was governor of Luxembourg, was well liked, especially in Walferdange where he distributed gifts to the children each Christmas. After his death in 1879, the castle lay empty until Grand Duke Adolphe adopted it as his summer residence in 1905, completely refurbishing the castle and its park. During the 20th century, the castle was used successively as a hospital, a teacher training college, an army barracks for the American and then the Luxembourg army and a pedagocical institute before the University of Luxembourg opened its Faculty of Language and Literature, Humanities, Arts and Education there in 2003.
Today the castle is one of the campuses of the University of Luxembourg, housing the Faculty of Language and Literature, Humanities, Arts and Education.
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.