William Sinclair, Earl of Orkney & Caithness
1410 - 1484 (74 years)(Notes: You may have to scroll down or right to see chart.)
| John Robertson Unknown-Unknown |
| John Robertson | |
| B: | Unknown |
| D: | Unknown |
Margaret Crichton Unknown-Unknown |
| Margaret Crichton | |
| B: | Unknown |
| D: | Unknown |
| Lady Isabel Stewart Unknown-Unknown |
| Lady Isabel Stewart | |
| B: | Unknown |
| D: | Unknown |
| Alexander Robertson, 5th. Baron of Struan Unknown-1505 |
| Alexander Robertson, 5th. Baron of Struan | |
| B: | Unknown |
| D: | 1505 |
| Lady Eleanor Sinclair 1457-1518 |
| Lady Eleanor Sinclair | |
| B: | 1457 |
| D: | 21 Mar 1518 |
| Sir John Stewart, 1st. Earl of Atholl Abt 1440-1512 |
| Sir John Stewart, 1st. Earl of Atholl | |
| B: | Abt 1440 |
| D: | 19 Sep 1512 |
| William Sinclair, Earl of Orkney & Caithness | |
| B: | 1410 |
| D: | 1484 |
| Marjory Sutherland Unknown-Aft 1457 |
| Marjory Sutherland | |
| B: | Unknown |
| D: | Aft 1457 |