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| YEAR | DATE | EVENT | HEAD OF STATE |
| 964 | County - dinasty della Gherardesca | earl Gherardo I | |
| 980 | earl Gherardo II | ||
| 1004 | earl Tedice I | ||
| 1009 | earl Ugo I | ||
| 1014 | earl Guido I | ||
| 1060 | earl Guido II | ||
| 1102 | earl Guido III | ||
| 1164 | earl Tedice | ||
| 1193 | Free Common | ||
| 1267 | Union to Kingdom of Napoli | ||
| 1310 | Lordship - dinasty Belforti | ||
| 1361 | Union to Florence |