In ‘the Scottish play’, MacDuff suspects Macbeth of regicide (murdering King Duncan) and eventually gets to kill Macbeth in the last act; the avenging hero who saves Scotland from tyranny. But this was Shakespeare writing PR as usual, in this case for the new Stuart King, James VI and I.
The first documentation of a Duff was a 10th-century King of Alba (Scotland), called Dubh mac Mhaoil Chaluim (962–967), the 10th monarch after Kenneth MacAlpin.
He first crops up in John of Fordun’s (written in the late 14th century) and then in in the early 15th century, which was
