| FERDINAND I of Antequera King of Sicily, Valencia & Majorca (1380 - 1416) | HENRY III King of Castile (1379 - 1406) |
| Leonor Urrac de Castilla (1374 - 1435) | Lady Katherine (Catherine) De Lancaster Plantagenet (1372 - 1418) |
| ALFONSO V of Aragon, "The Magnanimous" King of Sicily | Maria of Castile |
| b. 1394, Medina del Campo d. 26 Jun 1458, Naples bur. occ. edu. rel. Flags. | b. 14 Nov 1401, Segovia d. 7 Sep 1458, Valencia bur. occ. edu. rel. Flags. |
| FERDINAND (Ferrante) I 1st King of Naples Maria Leonora |