| Spouse | Marjory Sutherland (1436 - 1488) |
| Child | Eleanore Sinclair (1457 - 1518) |
| Child | Eleanor Sinclair ( - ) |
| Child | Lady Elizabeth Sinclair (1455 - 1498) |
| Child | Margaret Sinclair (1465 - ) |
| Child | Robert Sinclair (1447 - 1506) |
| Child | Alexander Sinclair (1454 - ) |
| Child | George Sinclair (1453 - ) |
| Child | Sir Oliver Sinclair of Roslin (1452 - 1520) |
| Child | Lady Marjorie Sinclair (1455 - 1508) |
| Child | Arthur Sinclair (1452 - ) |
| Child | William Sinclair 2nd Earl of Caithness (1445 - 1513) |
| Child | Oliver Sinclair (1458 - ) |
| Child | William Sinclair (1459 - 1513) |
| Child | Marjory Orkney Sinclair (1450 - 1480) |
| Child | Elizabeth Sinclair (1456 - 1498) |
| Child | Robert Sinclair ( - ) |
| Child | Margaret Sinclair (1465 - ) |
| Child | Catherine Sinclair (1476 - ) |
| Child | Henry Sinclair (1487 - ) |
| Child | Catherine Sinclair (1445 - 1486) |