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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1381 | dinasty Fieschi | Lordship | sire Luigi I |
| 1394 | sire Pierluca I | ||
| 14x | sire Giangiorgio | ||
| 1508 | Earldom | count Giangiorgio |
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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1517 | |||
| 1521 | count Pierluca II | ||
| 1531 | 3 may | dinasty Ferrero | count Filiberto |
| 1547 | 5 august | Marquisate | marquois Filiberto |
| 1559 | 7 november | marquois Besso | |
| 1584 | 6 october | marquois Francesco Filiberto |
| YEAR | DATE | EVENT | HEAD OF STATE |
| 1598 | 15 august | Principality | prince Francesco Filiberto |
| 1629 | 15 september | prince Paolo Besso | |
| 1667 | 2 january | prince Francesco Ludovico | |
| 1685 | 8 june | prince Carlo Besso | |
| 1720 | 10 may | prince Vittorio Amedeo | |
| 1743 | 1 october | prince Vittorio Filippo | |
| 1767 | 20 march | Union to Principality of Piemonte |