Abt 1350 - 1406 (~ 56 years)
 | John COLQUHOUN, * Aft 1420-1478 |
| John COLQUHOUN, * | |
| B: | Aft 1420 |
| Dumbarton, West Dunbartonshire, Scotland | |
| D: | 1 May 1478 |
| Dumbarton, West Dunbartonshire, Scotland | |
| Malcolm COLQUHOUN, * Abt 1395-1439 |
| Malcolm COLQUHOUN, * | |
| B: | Abt 1395 |
| Dumbarton, West Dunbartonshire, Scotland | |
| D: | 1439 |
| Dumbarton, West Dunbartonshire, Scotland | |
| Sir James COLQUHOUN Abt 1430-Yes, date unknown |
| Sir James COLQUHOUN | |
| B: | Abt 1430 |
| D: | Yes, date unknown |
| Sir John COLQUHOUN, Knight of Nova Scotia Aft 1400-Yes, date unknown |
| Sir John COLQUHOUN, Knight of Nova Scotia | |
| B: | Aft 1400 |
| of Luss, Dunbartonshire, Scotland | |
| D: | Yes, date unknown |
| Sir John COLQUHOUN, Govenor of Dumbarton Castle Abt 1370-1439 |
| Sir John COLQUHOUN, Govenor of Dumbarton Castle | |
| B: | Abt 1370 |
| D: | 1439 |
| of Dumbartonshire, Scotland | |
|
| Sir Humphrey COLQUHOUN, * Abt 1350-1406 |
| Sir Humphrey COLQUHOUN, * | |
| B: | Abt 1350 |
| , Dumbarton, Scotland | |
| D: | 1406 |
