

| Name | De Mormaer, Lord Duncan | |
| Born | Abt 949 | Atholl, Perthshire (Scotland) |
| Gender | Male | |
| Died | Abt 1040 | Dunkeld, Perthshire (Scotland) |
| Person ID | I500789 | Coursey-Sansing Tree |
| Last Modified | 17 Nov 2020 | |
| Father | De Mormaer, Duncan, b. Abt 925, Dunkeld, Perthshire (Scotland) | |
| Mother | , b. Abt 920, Perth, Perthshire (Scotland) | |
| Family ID | F500403 | Group Sheet | Family Chart |
| Family | Biornsson, Sibyl, b. Abt 950, Atholl, Perthshire (Scotland) | |||
| Children |
|
|||
| Last Modified | 17 Nov 2020 | |||
| Family ID | F500402 | Group Sheet | Family Chart | ||
| Notes |
|