Antiquities. -- There is a hill in the parish of Aboyne, called Mullach’s hill, in which there are a great number of cairns, said to be burial-places, after a great battle, in which one Mullach was killed.
As you’d expect really. From the first Statistical Account for Aboyne, of the 1790s. The second version likes to think Mullach was a Danish king or general, but calls it a ‘confused tradition’. Actually ‘Mullach’ seems to mean the hilltop in Gaelic...