Children |
| 1. Marjorie De Mar, Countess Of Lennox, b. 1270, Kildrummy Castle, Aberdeenshire, Scotland d. Bef 24 Jul 1326, Golspie, Sutherland, Scotland (Age < 56 years) |
| 2. Gartnait MacDomhnaill, 7th Earl Of Mar, b. 1272, Kildrummy, Aberdeenshire, Scotland d. Sep 1305, Mar Castle, (Present Aberdeenshire), Scotland (Age 33 years) |
| 3. Duncan De Mar, b. 1274, Of Kildrummy Cas, Kildrummy, Aberdeenshire, Scotland d. Yes, date unknown |
| 4. Alexander De Mar, b. Abt 1276, Of Kildrummy Castle, Kildrummy, Aberdeen, Scotland d. Yes, date unknown |
| 5. Queen Isabel De Mar, Of Scotland, b. 1277, Marr, Aberdeenshire, Scotland d. 12 Dec 1296, Dumbarton, Dunbartonshire, Scotland(Possibly Complications Resulting From Childbirth. ) (Age 19 years) |
| 6. Mary De Mar, b. Abt 1289, Kildrummy, Aberdeenshire, Scotland d. Yes, date unknown |
|