Mabel Heiress of Orval
- Yes, date unknownDrag or scroll to see more of the chart.
 | John (Sir) (of Basing) De St John 1225-1302 |
| John (Sir) (of Basing) De St John | |
| B: | 1225 |
| D: | 29 Sep 1302 |
| Alice (of Alcester) Fitzpiers -Yes, date unknown |
| Alice (of Alcester) Fitzpiers | |
| D: | Yes, date unknown |
| Robert (of Basing) De St John -Bef 1267 |
| Robert (of Basing) De St John | |
| D: | Bef 25 Mar 1267 |
| Agnes De Cantilupe -Yes, date unknown |
| Agnes De Cantilupe | |
| D: | Yes, date unknown |
| William De Port De St John 1173-1239 |
| William De Port De St John | |
| B: | 1173 |
| D: | 1239 |
| Godechilde De Paganel -Yes, date unknown |
| Godechilde De Paganel | |
| D: | Yes, date unknown |
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| Mabel Heiress of Orval -Yes, date unknown |
| Mabel Heiress of Orval | |
| D: | Yes, date unknown |
| Adam (Lord of Basing) De Port | |
| D: | 28 Jul 1213 |