Kenneth himself married Morna or Morba, daughter of Alexander
Macdougall, styled, "De Ergedia," Lord of Lorn by a daughter
of John, the first Red Comyn, Lord of Badenoch, who died in 1273.
Kenneth's wife was thus a sister of John, the Black Comyn, who
died about 1299, having married Marjory, daughter of John Baliol,
by whom he had John, the second Red Comyn, one of the competitors
for the Scottish Crown, killed by Robert the Bruce in the Church
of Dumfries in 1306. Kenneth's issue by Morna or Morba of Lorn was
John Mackenzie, II. of Kintail, who was thus, through his mother,
third In descent from John, the first Red Comyn, who died in 1273,
and sixth from the great Somerled of the Isles, Thane of Argyle,
progenitor of the Macdougalls of Lorn and of all the Macdonalds,
who died in 1164.

John made even a more illustrious alliance than his father, by
which at that early date he introduced the Royal blood of Scotland
and England into the family of Kintail. He married his relative,
Margaret, sister of David, twelfth Earl of Atholl, slain in 1335,
and daughter of David, the eleventh Earl, who died in 1327 (whose
estates were forfeited by Edward I.), by Joan Comyn (died 1323),
daughter of the Red Comyn killed by Robert the Bruce, and great
granddaughter of John Baliol. Margaret's father, David, eleventh
Earl of Atholl who died in 1327, was the oldest son of John de
Strathbogie, tenth Earl, hanged by Edward I. Earl John's mother
was the Countess Isabel de Dover, who died at a very old age in
1292, daughter of Richard Fitzroy de Chillam (died 1216), a natural
son of King John of England.

Kenneth Mackenzie, III. of Kintail, the issue of this marriage, was
sixth in descent from John Baliol of the Royal line of Scotland