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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1083 | County - dinasty Poitiers | earl Aimar I | |
| 1135 | earl William I | ||
| 1189 | earl Aimar II | ||
| 1230 | earl Aimar III | ||
| 1277 | earl Aimar IV | ||
| 1307 | earl Aimar IV and Aimar V | ||
| 1329 | earl Aimar V | ||
| 1339 | earl Louis I | ||
| 1345 | earl Aimar VI | ||
| 1373 | earl Louis II | ||
| 1419 | Union to Kingdom of France |