| Mother | Majorie Sutherland Gravin Van Caithness ( - 1475) |
| Sibling | Susan Sinclair ( - ) |
| Sibling | Katherine Sinclair (1461 - ) |
| Sibling | Marjory Sinclair (1460 - 1480) |
| Sibling | Margaret Sinclair (1465 - ) |
| Sibling | Robert Sinclair ( - ) |
| Sibling | William Caithness (1459 - 1513) |
| Sibling | Robert Sinclair (1461 - ) |
| Sibling | Catherine Sinclair (1476 - 1486) |
| Sibling | Sir Oliver Roslin Sinclair (1437 - 1509) |
| Sibling | William Waster Sinclair (1459 - 1487) |
| Sibling | David Sinclair (1452 - ) |
| Sibling | David Sinclair (1440 - ) |
| Sibling | Arthur Sinclair (1462 - ) |
| Sibling | William Sinclair (1463 - 1527) |
| Sibling | Henry Sinclair (1487 - ) |
| Sibling | Catherine Stewart Sinclair (1453 - 1486) |
| Sibling | Margaret Stewart ( - 1437) |
| Sibling | William Sinclair (1430 - 1487) |
| Sibling | John Sinclair (1458 - ) |
| Sibling | Elizabeth Sinclair (1460 - 1498) |
| Sibling | Elizabeth Sinclair (1440 - 1508) |