Folklore

Dunnideer
Hillfort

.. the Hill of Dun-o-Deer, in the parish of Insch: a conical hill of no great elevation, on the top of which stand the remains of a vitrified fort or castle, said to have been built by King Gregory about the year 880, and was used by that monarch as a hunting-seat; and where, combining business with pleasure, he is said to have meted out evenhanded justice to his subjects in the Garioch.

It has long been the popular belief that this hill contains gold; and that the teeth of sheep fed on it assume a yellow tinge, and also that their fat is of the same colour. Notwithstanding this, no attempt at scientific investigation has ever been made.
Abredonensis.

From Notes and Queries, September 24th, 1853.

The New Statistical Account says “.. only one wall [of the tower] remains entire, and this having but two windows, one above the oteher, and the upper one very much enlarged by the crumbling of its sides, has a curious effect seen at a distance, and is known by the name of “Gregory’s wall,” from a tradition that King Gregory had resided here.”