The Castle Quarter (Hungarian: Várnegyed) is the part of Buda in Budapest, the capital city of Hungary, that lies within the defensive walls of the Buda Castle complex, corresponding to the medieval royal city of Buda.
'Castle Hill'), it is the oldest part of Budapest, having been continuously inhabited since 1247.
The center of the neighborhood are the streets between the Royal Palace and Matthias Church.
Following the devastation during the Turkish occupation the whole building complex was reconstructed.
It now it hosts some notable museums and other monuments, among them the national library.