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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1312 | Lordship - dinasty Landi | sire Ubertino I | |
| 1314 | sire Manfredo I | ||
| 1327 | sire Manfredo II | ||
| 13xx | sire Ubertino II | ||
| 13xx | sire Galvano | ||
| 1405 | 21 february | count Galvano | |
| 1429 | count Manfredo | ||
| 1488 | count Federico | ||
| 1516 | count Claudio | ||
| 1536 | count Agostino I | ||
| 1552 | Principality | prince Agostino I | |
| 1555 | prince Manfredo I | ||
| 1576 | prince Claudio I | ||
| 1589 | prince Federico I | ||
| 1633 | princess Polisenna Maria | ||
| 1679 | 26 february | prince Giovanni Andrea III | |
| 1682 | Union to Duchy of Parma and Piacenza |