Individual Details
Living
( - )
Families
| Spouse | Living |
| Child | William Borthwick, 1st Lord Borthwick (1411 - 1458) |
| Father | Henry Sinclair, Earl of Orkney (1345 - 1400) |
| Mother | Living |
( - )
| Spouse | Living |
| Child | William Borthwick, 1st Lord Borthwick (1411 - 1458) |
| Father | Henry Sinclair, Earl of Orkney (1345 - 1400) |
| Mother | Living |