| Source: | The Scots Peerage Founded on Wood's Edition of Sir Robert Douglas's Peerage of Scotland Containing an Historical and Genealogical Account of the Nobility of that Kingdom, Volume VII |
| Page: | Queensberry, p. 112-14, William Douglas |
| Citation: | |
| Certainty: | probably |
| Notes: |
| 1 | Joanna Murray (-before 12 June 1410) |
| 2 | Sir William Douglas of Drumlanrig (-1421), 1. Laird of Drumlanrig, parents: Sir James Douglas |