- 1240
| Walter DE CORNWALL | |
| B: | Bef 1240 |
| D: | Yes, date unknown |
| Isabel D.Of WILLIAM MARSHAL | |
| D: | 1240 |
| Richard PLANTAGENET, Earl Of Cornwall | |
| B: | 5 Jan 1209 |
| M: | 1231 |
| D: | 2 Apr 1272 |
| Berkhampstead Castle, Herts, ENG | |
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