Kenneth Mackenzie, Lord Fortrose
Mackenzie was the eldest son of William Mackenzie, 5th Earl of Seaforth (died 1740) by his wife Mary, only daughter and heiress of Nicholas Kennet of Coxhow [Coxhoe in Kelloe parish, County Durham]. His father had taken part in the Jacobite rising of 1715 and had forfeited his estates and title under the Act of Attainder of 1716.
- Kenneth Mackenzie, 1st Earl of Seaforth, who married, first, Lady Caroline Stanhope and, second, Harriet Lamb; he had one child from his first marriage
- Margaret Mackenzie, who married (4 June 1785) William Webb, no known children.
- Mary Mackenzie (died 29 January 1826), who married Henry Howard and had one child
- Agnes Mackenzie, who married J. Douglas, no known children.
- Catherine Mackenzie, who married (1 March 1773) Thomas Griffin Tarpley, had at least one child.
- Frances Mackenzie, who married Joseph Wall (later hanged for flogging soldiers to death), and had children.
- Euphemia Mackenzie (died 14 February 1817), who married William Stewart of Castle Stewart and had children
- Mosley, Charles, editor. Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes. Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003. Volume 1, page 977.
- Surtees, Robert (1816). The History and Antiquities of the County Palatine of Durham. pp. Vol. 1 p. 72.
- Sir James Balfour Paul, The Scots Peerage, volume VII (Edinburgh, David Douglas, 1910), at page 512
| Chief of Clan Mackenzie
|Parliament of Great Britain|
| Member of Parliament for Inverness Burghs
1741 – 1747
Sir Harry Munro, Bt
| Member of Parliament for Ross-shire
1747 – 1761