(Notes: You may have to scroll down or right to see chart.)
| Isabel, Princess of Castile and Leon | |
| B: | 1355 |
| Morales, Tordesillas, Valladolid, Castile and León, Spain | |
| D: | 23 Dec 1392 |
| Scotland | |
| Edmund of Langley, 1st Duke of York | |
| B: | 5 Jun 1341 |
| Langley, Hertfordshire, England | |
| D: | 1 Aug 1402 |
| Kings Langley, Hertfordshire, England | |
| John Knox | |
| B: | 1350 |
| Craigend, Renfrewshire, Scotland | |
| D: | 1386 |
| Scotland | |
| Beatrizde Castile de Castile | |
| B: | 1354 |
| Córdoba, Andalucia, Spain | |
| D: | 1369 |
| Tordesillas, Valladolid, Castile and León, Spain | |
| Constance of Castile And Leon | |
| B: | Bef 1355 |
| D: | 24 Mar 1394 |
| Leicester Castle, Leicester, Leicestershire, England | |
| John of Gaunt (Ghent), King of Castile & Leon, 1st Duke of Lancaster, Duke of Aquitaine | |
| B: | Mar 1340 |
| St. Bavo's (Bravon) Abbey, Ghent (Gent), Oost-Vlaanderen (East Flanders), Belgium | |
| D: | 3 Feb 1398/9 |
| Leicester Castle, Leicester, Leicestershire, England | |
| Juan de Castile | |
| B: | Jan 1354/55 |
| D: | 1405 |
| Alfonso de Castile | |
| B: | 1359 |
| Tordesillas, Valladolid, Castile and León, Spain | |
| D: | 19 Oct 1362 |
| María de Padilla | |
| B: | 1334 |
| D: | Aug 1361 |
| Seville (Sevilla), Andalucia, Spain | |
| Pedro (Peter)'the Cruel', King of Castile and León | |
| B: | 30 Aug 1334 |
| Burgos, Castile and León, Spain | |
| D: | 22 Mar 1368/9 |
| Monteil, Ciudad Real, Castile-La Mancha, Spain | |
| Juan Garcia de Padilla, Senor de Villagera | |
| D: | 1355 |
