King of Leon
| Spanish | English | French | German | Year | Memo |
| Garci'a I | Garcia I | Garcia I | Garcia I | 910-914 | |
| Ordon~o II | Ordono II | Ordo?o II | 914-924 | K.of Galicia | |
| Fruela II | Fruela II | Fruela II | 924-925 | K.of Asturias | |
| Alfonso Froilaz | Alphonse | 925 | |||
| Alfonso IV el Monje | Alfonso IV the Monk | Alphonse IV | Alfons IV | 925-931 | |
| Ramiro II | Ramiro II | Ramiro II | 931-951 | ||
| Ordon~o III | Ordo?o III | Ordo?o III | 951-956 | ||
| Sancho I el Craso | Sancho I the Fat | Sanche I | Sancho I | 956-958 | |
| Ordon~o IV el Malo ? el Jorobado | Ordo?o IV the Wicked | Ordo?o IV | 958-960 | ||
| Sancho I el Craso | Sancho I the Fat | Sanche I | Sancho I | 960-966 | R. |
| Ramiro III | Ramiro II | Ramiro III | 966-984 | ||
| Vermudo II el Gotoso | Bermudo II the gouty one | Bermudo II | 984-999 | K.of Galicia | |
| Alfonso V el Noble | Alfonso V | Alphonse V | Alfons V | 999-1028 | |
| Vermudo III | Bermudo III | Bermudo III | 1028-1037 | ||
| Fernando I el Magno | Ferdinand I the Great | Ferdinand I der Gro?e | 1037-1065 | K.of Castile | |
| Alfonso VI el Bravo | Alfonso VI the Valiant | Alphonse VI | Alfons VI der Tapfere | 1065-1109 | K.of Castile |
| Urraca | Urraca | Urraca | 1109-1126 | F., Q.of Castile | |
| Alfonso VII el Emperador | Alfonso VII | Alphonse VII | Alfons VII | 1126-1157 | K.of Calicia, K.of Castile |
| Fernando II | Ferdinand II | Ferdinand II | Ferdinand II | 1157-1188 | |
| Alfonso IX | Alfonso IX | Alphonse IX | Alfons IX | 1188-1230 | |
| Fernando III | Ferdinand III | Ferdinand III | Ferdinand III | 1230-1252 | K.of Castile |
| Alfonso X | Alfonso X the Wise | Alphonse X | Alfons X | 1252-1284 | K.of Castile, HRE, GK |
| Sancho IV | Sancho IV | Sanche IV | Sancho IV | 1284-1296 | K.of Castile |
| Fernando IV | Ferdinand IV | Ferdinand IV | Ferdinand IV | 1296-1312 | K.of Castile |
| Alfonso XI | Alfonso XI | Alphonse XI | Alfons XI | 1312-1350 | K.of Castile |
| Pedro | Peter | Pierre | Peter | 1350-1369 | K.of Castile |
| Enrique II | Henry II | Henri II | Heinrich II | 1369-1379 | K.of Castile |
| Juan I | John I | Jean I | Johann I | 1379-1390 | K.of Castile |
| Enrique III | Henry III | Henri III | Heinrich III | 1390-1406 | K.of Castile |
| Juan II | John II | Jean II | Johann II | 1406-1454 | K.of Castile |
| Enrique IV | Henry IV | Henri IV | Heinrich IV | 1454-1474 | K.of Castile |
| Isabel | Isabella | Isabelle | Isabella | 1474-1504 | F., K.of Castile |
| Fernando V | Ferdinand V | Ferdinand V | Ferdinand V | 1474-1504 | K.of Sicily(II), K.of Catsile, K.of Aragon(II), K.of Naples(III) |
| Juana | Joan | Jeanne | Johanna | 1504-1509 | F., Q.of Castile |
| Felipe I | Philip I | Philippe I | Philipp I | 1504-1506 | K.of Castile |
| Carlos I | Charles I | Charles I Quint | Karl I | 1506-1516 | K.of Castile?K.of Spain, K.of Sicily(II), K.of Naples(IV), HRE(V), GK(V) |