Schloss Esterházy was constructed in the late 13th century, and came under ownership of the Hungarian Esterházy family in 1622. Under Paul I, 1st Prince Esterházy of Galántha the estate was converted into a baroque castle which remained the principal residence and center of administration of the family for over 300 years. The palace currently offers a wine museum, gift shop, guided tours, and concerts in the famous Haydnsaal as well as the large garden in the rear of the castle.
The Haydnsaal, originally the large multi-purpose festival and banquet room, is a piece of artwork in itself in the Schloss Esterházy. With its size and ornate splendor, it reflects the political, economic and cultural dominance of the Esterházy family. Today it ranks among the most beautiful and acoustically perfect concert halls of the world. Its name goes back to the famous composer Joseph Haydn, who worked for nearly forty years in the service of the Esterházy family. Many of his works composed and premiered in Eisenstadt and the Schloss Esterházy.
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.