[1] In about 1271 Alexander III of Scotland granted land to Duncan Forbes in this area and there may have been a castle up the river from the present site.

[2] Later that year a party from Clan Forbes was defeated by a party of Gordons at the battle of Tillieangus, Black Arthur Forbes, their commander, being killed by William Gordon of Terpersie, and the survivors being pursued to the gates of Druminnor Castle.

This dispute arose after the Master of Forbes repudiated his wife, the daughter of the Earl of Huntly.

[3] Additions were made to the castle in 1841-43, under the plans of Archibald Simpson, but these were removed in a further restoration by Margaret Sempill-Forbes in the 20th century, initially with the guidance of Ian Gordon Lindsay.

There is heavy corbelling carrying the circular stair tower, to the North-East,[4] squared out to create the watch room,[1] on the first floor.