Family: Alexander de Seton / Margaret de Berkeley (F1301)
 | Philip de Setun (1150- ) 
|
 | Alice or Helen of Dunbar (1158- )
|
| Thomas de Seton (1185- ) |
| Emma de Seton (1190- ) |
| Sir Walter de Berkeley (1140-1189)
|
| Eva Of Galloway (1168-1190)
|
| John de Berkeley (1185- ) |
| Daughter de Berkeley (1187- ) |
| Alexander de Seton (1180-1247)
|
| Margaret de Berkeley (1188- )
|
| Adam de Seton (1220-1249) |
| Bertram de Seton (1225- ) |
| Sir Seyer de Seton (1230-1265)  |
| Sir Christopher de Seton (1235-1269) |