The Electoral Palace in Amberg was built from 1417 by Louis III, Elector Palatine, and replaced the Alte Veste, a Gothic building in the town center, as the electoral court. The original building on the north was added with a south wing, a moat and a gatehouse, by Elector Frederick I turning it into a fortress. Its present appearance with a high voluted gable was set in 1603 by Johannes Schoch, who redesigned the Zeughaus with an added tower on the south. On 1738 horse stables were built as a western wing.
After several large fires in the 17th century, only the south wing (Neues Schloss) remains from the once three-winged palace. It is connected through the fortified bridge Stadtbrille, to the Zeughaus (armory) across the Vils river.
Having served the Electors of the Palatinate from its construction to the abolition of the Electorate, the castle was home, since the 19th century, first to the Royal Bavarian District office and Revenue office, later the District Office of the Bavarian State Amberg District and from 1972 of the District of Amberg-Sulzbach.
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.