Commons 1754-1790

b. 9 June 1754, 2nd s. of Maj. William Mackenzie, nephew of William, 5th Earl of Seaforth [S], attainted 1716, by Mary, da. of Matthew Humberston of Humberston, Lincs. m. 22 Apr. 1782, Mary, da. of Very Rev. Baptist Proby, dean of Lichfield, 4s. 6da. suc. bro. 30 Apr. 1783; cr. Lord Seaforth 26 Oct. 797.

b. 1727, 1st s. of George, 3rd Earl of Cromartie [S], attainted 1746, by Isabella, da. of Sir William Gordon, 1st Bt., M.P., of Invergordon. m. 4 June 1786, Margery, da. of James, 17th Lord Forbes [S], s.p. suc. fa. 28 Sept. 1766; his uncle Sir John Gordon in Invergordon estates 1783, which he sold 1786; recovered the Cromartie estates 1784.

b. Nov. 1717, 1st s. of William, 5th Earl of Seaforth [S], attainted 1716, by Mary, da. and h. of Nicholas Kennett of Coxhoe, co. Dur. educ. partly in France under Jesuits. m. 11 Sept. 1741, Lady Mary Stewart (d. 1751), da. of Alexander, 6th Earl of Galloway [S], half-sis. of Lord Garlies and Keith Stewart, and niece of George, 9th Earl Marischal [S], 1s. 6da. suc. fa. 8 Jan. 1740.

b. 15 Jan. 1744, o.s. of Kenneth Mackenzie. m. (1) 7 Oct. 1765, Lady Caroline Stanhope (d. 9 Feb. 1767), da. of William, 2nd Earl of Harrington, 1da.; (2) Harriet Powell (formerly Lamb), da. of a London apothecary, s.p. suc. fa. 18 Oct. 1761; cr. Visct. Fortrose [I] 18 Nov. 1766; Earl of Seaforth [I] 3 Dec. 1771.

b. ?1725.Mackreth to Anthony Hamond, 6 Feb. 1818, mss in the possession of Capt. Anthony Hamond of Norwich. m. 22 Oct. 1761, Mary, da. and h. of Robert Arthur, s.p. Kntd. 8 May 1795.