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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1054 | Count - dinasty Clermont | earl Renaud I | |
| 1084 | earl Hughes | ||
| 1114 | earl Renaud II | ||
| 1120 | earl Raoul I | ||
| 1191 | earles Catherine | ||
| 1198 | dinasty Blois | earl Thibaut comte de Blois | |
| 1218 | earl Philippe comte de Boulogne | ||
| 1234 | earles Jeanne | ||
| 1250 | Union to Kingdom of France |