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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1163 | VisCount - dinasty Armagnac | vicomte Bernard | |
| 1198 | vicomte Roger | ||
| 1240 | vicomte Geraurd I earl of Armagnac | ||
| 1285 | vicomte Gaston | ||
| 1320 | vicomte Geraurd II | ||
| 1339 | vicomte Jean | ||
| 1390 | vicomte Geraurd III earl of Perdiac | ||
| 1403 | Union to County of Armagnac |