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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1262 | Lordship - dinasty Fogliani | sire Giberto | |
| 12xx | sire Francesco | ||
| 1423 | Count - dinasty Boiardo | count Feltrino | |
| 1455 | count Giulio Ascanio (I) | ||
| 1460 | count Giovanni | ||
| 1474 | count MAtteo Maria | ||
| 1494 | count Camillo | ||
| 1499 | count Giulio Ascanio (II) | ||
| 1523 | count Giovanni Battista | ||
| 1528 | 25 february | count Giulio | |
| 1553 | 2 july | count Ippolito | |
| 1560 | 10 november | Union to Duchy of Modena and Reggio |