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| YEAR | DATE | EVENT | HEAD OF STATE |
| 808 | Count - dinasty Aragona | earl Aznar I | |
| 839 | earl Garcia | ||
| 858 | earl Galindo I | ||
| 867 | earl Aznar II | ||
| 893 | earl Galindo II | ||
| 922 | earles Andregato | ||
| 972 | Count united to Kingdom of Navarra | ||
| 1035 | february | Kingdom - dinasty Iniga | Re Ramiro I |
| 1063 | 8 may | king Sancio I | |
| 1094 | 4 june | king Pedro I | |
| 1104 | 28 september | king Alfonso I | |
| 1134 | 17 july | king Ramiro II | |
| 1137 | queen Petronilla | ||
| 1162 | 8 august | dinasty Barcellona | king Alfonso II |
| 1195 | 25 april | king Pedro II | |
| 1213 | 13 settembte | king Jaime I | |
| 1276 | 25 july | king Pedro III | |
| 1285 | 10 november | king Alfonso III | |
| 1291 | 18 june | king Jaime II | |
| 1327 | 5 november | king Alfonso IV | |
| 1336 | 7 january | king Pedro IV | |
| 1387 | 5 january | king John I | |
| 1395 | 19 may | king Martin | |
| 1410 | 31 may | interregno | |
| 1412 | 24 june | dinasty Borgogna-Ivrea | king Ferdinand I |
| 1416 | 2 april | king Alfonso V | |
| 1458 | 28 june | king John II | |
| 1479 | 19 january | king Ferdinando II | |
| 1512 | 16 july | Union to Castiglia into Kingdom of Spain | |
| 1982 | 16 august | Spanish self-governing region |