| Duncan Earl Mar ( - <1243) |
William Comyn ( - 1233) |
| Marjorie or Margaret Countess Buchan ( - 1267) |
| William Earl Mar | Elizabeth Comyn |
| b. d. bef 25 Jul 1281, Scotland bur. occ. cen. im. . ud. |
b. Scotland d. 1267 bur. occ. cen. im. . ud. |
| Spouses: 1, 2 |
| Donald of Mar Earl of Mar |