[1] According to an old manuscript "the old feud was cruell betwixt the two families; as that Marischall's people burnt one of Drum's children in hot wort; and Drum burnt Hall-forest, and wasted sundry lands of Marischall's all in revenge of that wrong".

[1] According to the New Statistical Account of Scotland a fight took place between the two clans on a moor on the north bank of the River Dee which is now known as Keith's Muir.

[2] The Irvines were victorious and drove their enemies across a deep and rocky part of the channel which is now known as Keith's Pot,[2] where many of them were drowned.

[1] By mediation of the King it was arranged for Irvine of Drum's eldest son to marry the daughter of Keith the Earl Marischal.

[3] In 1411 Irvine of Drum took part in the Battle of Harlaw where he held command in the Lowland army and where he engaged in a duel with Maclean of Duart Castle in which both were killed.