Hallforest Castle is a keep, one of the oldest in Scotland,[1] as it dates from the 14th century.
[1] The castle is believed to have been built by Robert the Bruce as a hunting lodge; he is said to have granted it to Robert II Keith, Marischal of Scotland, the predecessor of the Earls of Kintore.
[1] It may have been abandoned shortly afterward, although it remains the property of the Earls of Kintore.
[1] It once had a parapet, and probably a stone roof resting on an upper arch.
[2] Originally the castle had six floors, while its walls were 7 feet (2.1 m) thick.