I have the Sinclair Earls of Caithness as follows (please let me know of
1. William Sinclair b. abt 1415 d.
1482 also 3rd Earl/Prince of Orkney, 6th Lord of
Roslin; grandson of Prince Henry Sinclair m- bef 15 Nov.
1456- Marjorie (Mary) Sutherland children- William
'the Waster', Oliver, William, Eleanor, David, Robert, John,
Elizabeth, Marion, Margorie
2. William Sinclair b. 1455 d. 9
Sept. 1513 (@ Flodden Field, the Battle of Flodden)
son of above m-1475- Mary (Margaret) Keith b. abt
1461 children- John, Alexander
3. John Sinclair b. abt 1490 d. 18
May 1529 (in battle trying to seize Orkney) son of
above m- Elizabeth Sutherland b. abt
1488 children- George, William
4. George Sinclair b.
1533 d. 9 Sept. 1582 starved son in
dungeon at Girnigoe m- Elizabeth Graham b. abt 1506 d. bef
4 April 1576 children- John 'Master of Caithness', George,
William, Barbara, Elizabeth, Janet, Fnu, Agnes, unnamed
5. George Sinclair b. bef 1543 d.
1577/1578/1643 grandson of George 4, and son of John
starved in Girnigoe dungeon m- Lady Jean Gordon
6. George Lost title and estates to Sir
John Campbell of Glenorchy; (great grandson of above m-
dau of the Marquis of Argyle)?
7. George Sinclair of Keiss d. 1698
won everything back in court including title
8. John Sinclair of Merchil b. bef/aft
1640 d. 1705 descended from a
grandson of George the 4th m- Janet/Jean Carmichael b. abt
9. Alexander Sinclair b. ca 1670
d.1775/85 son of above, failed to have a male heir and
so the title passed to a cousin m- Margaret Primrose (dau.
of Archibald Primrose 1st Earl of Rosebery)
children- Dorthea Sinclair b. 4 April 1739 d. 30 Sept.
1818 Hermitage House, Leith m- James Duff Earl of Fife 4
June 1759 no children
10. Lord William Sinclair of Ratter
d.1789 descended from the 3rd grandson (Sir John
Sinclair of Greenland) of George the 4th Earl children-
11. John Sinclair d.
1789 son of above, fought in American War of
12. Sir James Sinclair of Mey d.
1823 descended from a son of George the 4th Earl,
received title in 1789 m-2 Jan. 1784- Jean
Campbell children- Helen, John, Ester, Alexander,
Charlotte, James, Patrick, Eric
13. Alexander Sinclair b. 1790 d.
1858/55 son of above
14. James d. 1881 in NY
15. George of Mey d. 1889
16. James Augustus Sinclair b. bef
1855 d. aft 1889/1881
17. John Sutherland Sinclair d. 30 May 1914 at
Berriedale ranch in Lacota, North Dakota/ Representative in the 30s
18. Norman MacLeod Sinclair b. 4 April 1862
20. Malcolm Ian Sinclair
I love all of this information but have little time to deal with it, thus
I do not stand behind this info 100%. I do feel that it is reasonably
accurate. If you have questions I can provide some sources. When
taking notes I don't usually rule out dates that differ, I simply add them
as an additional piece of information. My computer warns me when
things are not feasible but two different sources can give you very
different ideas when you get down to the numbers. I would like to
expand this further so please feel free to give me all you've got!