| Male Earl of Douglas William Douglas |
| Birth | Abt 1327 | |
| Death | Abt May 1384 | |
| Burial | ||
| Marriage | 1357 [1] | |
| Father | Sir Archibald Douglas | F1432 Group Sheet | |
| Mother | ||
| Female Countess of Mar Margaret of Mar |
| Birth | ||
| Death | 1390 | |
| Burial | ||
| Father | Earl of Mar Domnhall of Mar | F1431 Group Sheet | |
| Mother | Isabella Stewart | F1431 Group Sheet | |
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