King of Castile and León (1406–1454)
| Born | March 6 | 1405 | Toro (España) |
| Died | July 20 | 1454 | Valladolid (España) |
| Father | Enrique III, King of Castile (1379-1406) |
| Mother | Catherine of Lancaster (1373-1418) |
| Wife | María de Aragón (1403-1445) |
| Daughter | Catalina de Castilla (1422-1424) |
| Daughter | Leonor de Castilla (1423-1425) |
| Son | Enrique IV de Castilla (1425-1474) |
| Wife | Isabel de Portugal (1428-1496) |
| Daughter | Isabel I de Castilla (1451-1504) |
| Son | Alfonso de Castilla (1453-1468) |
| Title | King of Castile and León (1406-1454) |