Alexander (of Stemster & Dunheath) Sinclair
- Yes, date unknown
1. Alexander (of Stemster & Dunheath) Sinclair (son of William (2nd Earl of Caithness) Sinclair and Mary Keith); and died. Family/Spouse: Elizabeth De Innes. Elizabeth (daughter of Alexander (13th of That Ilk) De Innes and Christian (of Westfield & Cunnock) Dunbar) and died. [Group Sheet] [Family Chart]
Children:- Helen (of Stemster & Dunheath) Sinclair and died.
2. William (2nd Earl of Caithness) Sinclair (son of William (3rd Earl of Orkney & Caithness) Sinclair and Marjory Sutherland); died on 9 Sep 1513 in Battle Of Flodden. William + Mary Keith. Mary (daughter of Sir William Keith) and died. [Group Sheet] [Family Chart]
3. Mary Keith (daughter of Sir William Keith); and died. Children:
- John (3rd Earl of Caithness) Sinclair died on 18 May 1529 in Battle Of Summerdale, Orkney.
- 1. Alexander (of Stemster & Dunheath) Sinclair and died.
Generation: 3
4. William (3rd Earl of Orkney & Caithness) Sinclair (son of Henry (2nd Earl of Orkney) Sinclair and Egidia (of Nithsdale) Douglas); died about 1480. William married Marjory Sutherland before 15 Nov 1456. Marjory (daughter of Alexander (of Dunbeath) Sutherland and Katherine Chalmers, daughter of Alexander (of Dunbeath) Sutherland and Marion (Or Mariotta) (De Ile) Macdonald) was born about 1436; and died. [Group Sheet] [Family Chart]
5. Marjory Sutherland was born about 1436 (daughter of Alexander (of Dunbeath) Sutherland and Katherine Chalmers, daughter of Alexander (of Dunbeath) Sutherland and Marion (Or Mariotta) (De Ile) Macdonald); and died. Children:
- Oliver (Sir) Sinclair and died.
- 2. William (2nd Earl of Caithness) Sinclair died on 9 Sep 1513 in Battle Of Flodden.
- Marjory (of Orkney) Sinclair and died.
- Eleanor Sinclair was born before 19 Apr 1457; died on 21 Mar 1517-1518; was buried in March 21, 1580/81.
- Margaret (of Orkney) Sinclair and died.
6. Sir William Keith and died. Children:
- 3. Mary Keith and died.
Generation: 4
8. Henry (2nd Earl of Orkney) Sinclair (son of Henry (1st Earl of Orkney) Sinclair and Jean (of Dirleton Castle) Halyburton); died about 1418. Henry married Egidia (of Nithsdale) Douglas about 1407. Egidia (daughter of Sir William (Lord of Nithsdale) Douglas and Princess Egidia Stewart) was born about 1391; died about 1438. [Group Sheet] [Family Chart]
9. Egidia (of Nithsdale) Douglas was born about 1391 (daughter of Sir William (Lord of Nithsdale) Douglas and Princess Egidia Stewart); died about 1438. Children:
- 4. William (3rd Earl of Orkney & Caithness) Sinclair died about 1480.
10. Alexander (of Dunbeath) Sutherland (son of Robert (6th Earl of Sutherland) De Moravia and Margaret Stewart); died after 15 Nov 1456. Alexander + Katherine Chalmers. Katherine and died. [Group Sheet] [Family Chart]
11. Katherine Chalmers and died. Children:
- 5. Marjory Sutherland was born about 1436; and died.