| Father | Sir John 2nd Lord Seton (1370 - 1434) |
| Mother | Lady Katherine St Clair (1374 - 1450) |
| Sibling | Sir William de Laird Seton (1390 - 1424) |
| Sibling | Christian Seton (1392 - ) |
| Sibling | Alexander Seton (1393 - ) |
| Sibling | Janet Seton (1395 - ) |
| Sibling | Roger Seton (1395 - ) |
| Sibling | Margaret Seton (1397 - ) |
| Sibling | Marian Seton (1397 - ) |
| Sibling | Jean Seton (1401 - ) |
| Sibling | Alexander DeSeton (1404 - ) |
| Sibling | Catherine Seton (1405 - ) |
| Sibling | Jean DeSeton (1407 - ) |
| Sibling | Anna Seton (1407 - ) |
| Sibling | Lucy Seton (1409 - ) |
| Sibling | Marian Seton (1409 - 1447) |
| Sibling | Christian Seton (1492 - ) |