Compact tree of Joan de Cornwall
| King Henry “Henry II” Curtmantle 1133–1189 | |||||||||||||
| King John Lackland 1166–1216 | Richard “King of the Romans” Plantagenet 1209–1272 | Countess Isabella of Gloucester 1173–1217 | |||||||||||
| Eleanor of Aquitaine 1122– | |||||||||||||
| Richard “Earl of Cornwall” de Cornwall 1252–1280 |
|
Joan St. Owen 1260–1316 | |||||||||||
| Joan de Valletort 1214–1267 | |||||||||||||