See also
| Husband: | John SINCLAIR (c. 1495-1529) | |
| Wife: | Elizabeth SUTHERLAND (c. 1488-1538) | |
| Children: | David SINCLAIR ( - ) | |
| Margaret SINCLAIR (c. 1518-1569) | ||
| William SINCLAIR (1525- ) | ||
| George SINCLAIR (1527-1582) | ||
| Name: | John SINCLAIR | |
| Sex: | Male | |
| Father: | William SINCLAIR (c. 1459-1513) | |
| Mother: | Mary KEITH (c. 1477-1549) | |
| Birth | c. 1495 | Branxton, Northumberland |
| Occupation | 3rd Earl of Caithness | |
| Death | 18 May 1529 (age 33-34) | Somersdale, Stenness, Orkney Islands |
| Name: | Elizabeth SUTHERLAND | |
| Sex: | Female | |
| Father: | William SUTHERLAND (c. 1459-1530) | |
| Mother: | Janet INNES (c. 1473-1517) | |
| Birth | c. 1488 | Moray, Invernessshire |
| Occupation | Countess of Caithness | |
| Death | Sep 1538 (age 49-50) | Aboyne, Aberdeenshire |
| Name: | David SINCLAIR | |
| Sex: | Male | |
| Name: | Margaret SINCLAIR | |
| Sex: | Female | |
| Spouse 1: | John ST CLAIR (c. 1512-bef1565) | |
| Spouse 2: | James COCKBURN (bef1513-1578) | |
| Birth | c. 1518 | Girnigoe Castle, Wick, Caithness |
| Death | 7 Mar 1569 (age 50-51) | Herdmanstoun, East Lothian |
| Name: | William SINCLAIR | |
| Sex: | Male | |
| Birth | 1525 | |
| Name: | George SINCLAIR | |
| Sex: | Male | |
| Birth | 14 Jul 1527 | Moray, Inverness-shire, Scotland |
| Occupation | Fourth Earl of Caithness | |
| Death | 9 Sep 1582 (age 55) | Edinburgh, Midlothian |