Individual Details
John de Cornwall
( - )
Families
| Father | Geoffrey De Cornwall (1288 - 1335) |
| Mother | Margaret De Cornwall (1295 - 1345) |
| Sibling | Richard de Cornwall (1311 - 1343) |
| Sibling | Geoffrey de Cornwall ( - ) |
( - )
| Father | Geoffrey De Cornwall (1288 - 1335) |
| Mother | Margaret De Cornwall (1295 - 1345) |
| Sibling | Richard de Cornwall (1311 - 1343) |
| Sibling | Geoffrey de Cornwall ( - ) |