Children |
+ | 1. Beatrix Sinclair, Countess of Douglas, d. 8 Feb 146, Douglas, Lanarkshire, Scotland |
| 2. Beatrice Sinclair, b. Abt 1400, Orkney, Scotland |
| 3. William, b. 1404, Roslin, Caithnesshire, Scotland , d. 21 May 1480, Kirkcaldy, Fife, Scotland (Age 76 years) |
| 4. William Sinclair, 11th Baron Roslin; 1st Earl Caithness; 3rd Earl Orkney; Admiral & High Chancellor of Scotland, b. 20 Jan 1404, Rosslyn Castle, Midlothian, Scotland , d. 29 Mar 1480, Ravenscraig Castle, Cupar, Fifeshire, Scotland (Age 76 years) |
| 5. Katherine St Clair, b. 1405, Herdmanston, East Lothian, Scotland , d. 1449, Seton, East Lothian, Scotland (Age 44 years) |
| 6. Elizabeth Sinclair, b. 1410, Dunbeath, Caithness, Scotland , d. 8 Feb 1462, Douglas, Lanarkshire, Scotland (Age 52 years) |
| 7. William Sinclair, b. 1410, Rosslyn Castle, Roslin, Midlothian, Scotland |
| 8. Henry Sinclair, b. 1415, Orkney, Scotland |
| 9. Margaret Sinclair, b. 1419, Dunbeath Castle, Dunbeath, Caithness, Scotland , d. 8 Feb 1462, Douglas, Lanarkshire, Scotland (Age 43 years) |
+ | 10. William Sinclair, 3rd Earl Orkney 1st Earl Caithness, b. Abt 1435, Caithness, Scotland , d. 21 May 1480, Caithness, Scotland (Age 45 years) |
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