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| YEAR | DATE | EVENT | HEAD OF STATE |
| 943 | Earldom - dinasty Guidi | earl Guido I | |
| 963 | earl Tegrimo II | ||
| 990 | earl Guido II | ||
| 1034 | earl Guido III | ||
| 1056 | earl Guido IV | ||
| 1103 | earl Guido V | ||
| 1124 | earl Guido VI | ||
| 1157 | earl Guido VII | ||
| 1210 | earl Tegrimo III | ||
| 1234 | earl Guido VIII | ||
| 1293 | earl Tegrimo IV | ||
| 1314 | earl Ruggero | ||
| 1322 | earl Giovanni | ||
| 1353 | earl Guido Francesco | ||
| 1368 | earl Antonio | ||
| 1370 | Union to Firenze Republic |