A genealogy of the Heath, Palmer, Thayer, Goodnow, and other allied families.
| Earl of March IV Roger Mortimer | |
| D: | 1398 |
| ,,,Ireland | |
 | Eleanor Holland -1405 |
| Eleanor Holland | |
| D: | 1405 |
| Edmund Mortimer -1409 |
| Edmund Mortimer | |
| D: | 1409 |
| Philippa Mortimer -1401 |
| Philippa Mortimer | |
| D: | 1401 |
| Earl of March 3d Edmund Mortimer | |
| D: | 1381 |
| Countess Philippa of_Ulster | |
| D: | 1382 |
| Earl of March II Roger Mortimer | |
| D: | 1360 |
|
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