| John of Gaunt
* 1340 † 1399 | ||
| & | |
| Marie de Saint-Hilaire
* 1340 † >1399 | ||
| Blanche Plantagenet
* 1359 † ~1388 | ||
| ∞ 1359 | ||
Blanche of Lancaster
![[mer]](up.png)
* 1345 † 1368 | ||
| Philippa of Lancaster
* 1360 † 1415 | ||
| >> | ||
| John of Lancaster
* 1362 † ~1365 | ||
| Elizabeth of Lancaster
* 1364 † 1426 | ||
| Edward of Lancaster
* 1365 † ~1365 | ||
| John of Lancaster
* 1366 † ~1367 | ||
| Henry IV of England
* 1367 † 1413 | ||
| >> | |
| Isabel of Lancaster
* 1368 † 1368 | ||
| ∞ 1371 | ||
| Constanza de Castilla
* 1354 † 1394 | ||
| Catherine of Lancaster
* 1373 † 1418 | ||
| >> | ||
| John of Lancaster
* 1374 † 1375 | ||
| ∞ 1396 | ||
| Katherine Swynford (de Ruet)
* 1350 † 1403 | ||
| John Beaufort
* 1373 † 1410 | ||
| >> | ||
| Henry Beaufort
* ~1374 † 1447 | ||
| Thomas Beaufort
* ~1377 † 1426 | ||
| Joan Beaufort
* ~1379 † 1440 | ||
| >> | ||