| Joan of England | f 1272 | d 1307 | |
| & Gilbert de Clare | f 1243 | d 1295 | |
| Gilbert de Clare | f 1291 | d 1314 | |
| & Matilda de Burgh | f ~1288 | d 1320 | |
| Eleanor de Clare | f 1292 | d 1337 | |
| Margaret de Clare | f 1293 | d 1342 | |
| & Piers Gaveston | d 1312 | ||
| Elizabeth de Clare | f 1295 | d 1360 | |
| & John de Burgh | f ~1286 | d 1313 | |
| William Donn de Burgh | |||
| & Matilda of Lancaster | f ~1310 | d 1377 | |
| Elizabeth de Burgh | d 1363 | ||
| & Lionel of Antwerp | f 1338 | d 1368 | |
| Philippa Plantagenet | f 1355 | d 1382 | |
| & Edmund Mortimer | f 1352 | d 1381 | |
| Elizabeth Mortimer | |||
| Roger Mortimer | >> | f 1374 | d 1398 |
| Edmund Mortimer | |||
| Philippa Mortimer | |||
| & Ralph de Monthermer |
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