| Pedro I de Castilla | f 1334 | d 1369 | |
| & Maria de Padilla | |||
| Beatriz de Castilla | f 1353 | d 1369 | |
| Constanza de Castilla | f 1354 | d 1394 | |
| & John of Gaunt | f 1340 | d 1399 | |
| Catherine of Lancaster | f 1373 | d 1418 | |
| & Enrique III de Castilla | f 1379 | d 1406 | |
| Maria de Castilla | f 1401 | d 1458 | |
| Catalina de Castilla | f 1403 | d 1439 | |
| Juan II de Castilla | >> | f 1405 | d 1454 |
| John of Lancaster | f 1374 | d 1375 | |
| Isabel de Castilla | f 1355 | d 1392 | |
| & Edmund of Langley | f 1341 | d 1402 | |
| Edward of Norwich | f ~1373 | d 1415 | |
| Constance of York | f ~1374 | d 1416 | |
| & Thomas le Despenser | f 1373 | d 1400 | |
| Elizabeth le Despenser | d ~1398 | ||
| Richard le Despenser | f 1396 | d 1414 | |
| Edward le Despenser | f <1400 | ||
| Hugh le Despenser | f ~1400 | d 1401 | |
| Isabel le Despenser | >> | f 1400 | d 1439 |
| Richard of Conisburgh | f 1385 | d 1415 | |
| & Anne Mortimer | f 1390 | d 1411 | |
| Isabel of York | f 1409 | d 1484 | |
| Henry of York | |||
| Richard of York | >> | f 1411 | d 1460 |
| & Maud Clifford | d 1446 | ||
| Alice of York | |||
| Alfonso de Castilla | f 1359 | d 1362 |
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