Family: Sir Alexander de Seton / Christian Cheyne (F1299)
 | Alexander de Seton (1250- ) 
|
 | Janet Gifford (1250- )
|
| Francis Le Chen (1240- )
|
| Isabel Comyn (1265- )
|
| Sir Henry Le Chen (1281-1351) |
| Reginald Le Chen (1283- ) |
| Francis Le Chen (1288- ) |
| Sir Alexander de Seton (1275-1350)
|
| Christian Cheyne (1285- )
|
| Thomas de Seton (1304-1333) |
| William de Seton (1306-1333) |
| Sir Alexander de Seton (1308-1332) |
| Sir John de Seton (1310-1328)  |