[1] The Mackenzies' origins lay in the Northwest Highlands, but the centre of their power had by the end of the 15th century shifted to Easter Ross.
Kenneth appears never to have been served heir to his father and the absence of contemporary references to him has resulted in doubt over his very existence.
Not long afterwards, while at Torwood in Stirlingshire with Mackintosh, he was attacked and killed by the Laird of Buchanan.
Mackintosh escaped death, but was imprisoned for many years, and Buchanan (an outlaw) was thereby returned to royal favour.
[2] Kenneth left no legitimate issue and was succeeded by his half-brother, John Mackenzie, 9th of Kintail, who faced a fierce challenge for his inheritance from their uncle, Hector Roy Mackenzie of Gairloch.