1354 - 1394 (40 years)
| Queen of Castile and León, Queen consort of Aragon, Majorca, Naples, Sicily and Valencia Isabella van Castilië, Aragon | |
| B: | 22 Apr 1451 |
| Avila, Castilla-Leon, Spain | |
| D: | 26 Nov 1504 |
| Medina del Campo, Valladolid, Castilla-Leon, Spain | |
| King of Aragon, King of Sicily, King of Naples, and King of Valencia, Sardinia, and Navarre King Ferdinand de Aragón, II | |
| B: | 10 Mar 1452 |
| Sos, Huesca, Aragon, Spain | |
| M: | 19 Oct 1469 |
| Valladolid, Castilla-Leon, Spain | |
| D: | 23 Jan 1516 |
| Madrigalejo, CAceres, Extremadura, Spain | |
 | Juan de Castilla y León, II 1405-1454 |
| Juan de Castilla y León, II | |
| B: | 6 Mar 1405 |
| Toro, Zamora, Castilla-Leon, Spain | |
| D: | 20 Jul 1454 |
| Valladolid, Valladolid, Castilla-Leon, Spain | |
| Queen of Castile Queen Isabella de Portugal | |
| B: | 1428 |
| Lisboa, Lisboa, Portugal | |
| M: | Aug 1447 |
| Madrigalejo, CAceres, Extremadura, Spain | |
| D: | 15 Aug 1496 |
| Spain | |
 | Maria del Carmen Quinteras 1396-1445 |
| Maria del Carmen Quinteras | |
| B: | 1396 |
| Medina del Campo, Valladolid, Castilla-Leon, Spain | |
| M: | 4 Aug 1420 |
| Avila, Castilla-Leon, Spain | |
| D: | 18 Feb 1445 |
| Villacastín, Segovia, Castilla-Leon, Spain | |
 | Catalina de Lancaster Plantagenet 1373-1418 |
| Catalina de Lancaster Plantagenet | |
| B: | 31 Mar 1373 |
| Hertford, Hertfordshire, England | |
| D: | 2 Jun 1418 |
| Valladolid, Valladolid, Castilla-Leon, Spain | |
 | King Enrique de Castile, III 1379-1406 |
| King Enrique de Castile, III | |
| B: | 4 Oct 1379 |
| Burgos, Burgos, Castilla-Leon, Spain | |
| M: | Mar 1390 |
| Madrid, Madrid, Spain | |
| D: | 25 Dec 1406 |
| Toledo, Toledo, Castilla-La Mancha, Spain | |
| Constanze Castile 1354-1394 |
| Constanze Castile | |
| B: | 1354 |
| Castilla y Leon, Spain | |
| D: | 24 Mar 1394 |
| Leicester, Leicestershire, England | |
| 1st Duke of Lancaster John Gaunt Plantagenet | |
| B: | 14 Mar 1340 |
| Belgium | |
| M: | Sep 1371 |
| Roquefort, Landes, Aquitaine, France | |
| D: | 3 Feb 1399 |
| Leicester, Leicestershire, England | |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
