| YEAR | DATE | EVENT | HEAD OF STATE |
| 965 | Count - dinasty Armagnac | earl Bernardo I | |
| 965 | earl Gerardo I | ||
| 1014 | earl Bernardo II duke of Guascogna | ||
| 1090 | earl Gerardo II e Arnaldo | ||
| 1095 | earl Bernardo III | ||
| 1110 | earl Gerardo III | ||
| 1160 | earl Bernardo IV | ||
| 1193 | earl Gerardo IV | ||
| 1215 | dinasty Lomagne | earl Gerardo V | |
| 1219 | earl Pietro Gerardo | ||
| 1242 | earl Bernardo V | ||
| 1246 | earl Gerardo VI | ||
| 1285 | earl Bernardo VI | ||
| 1319 | earl John I | ||
| 1373 | earl John II | ||
| 1384 | earl John III | ||
| 1391 | earl Bernardo VII | ||
| 1418 | earl John IV | ||
| 1450 | earl John V | ||
| 1473 | earl Carlo | ||
| 1493 | Count of king of Navarra | ||
| 1589 | Count of King of France | ||
| 1607 | Union to Kingdom of France |