| YEAR | DATE | EVENT | HEAD OF STATE |
| 1012 | Bishopland | bishop Gerardo Runsigny | |
| 1051 | x | ||
| 1196 | bishop Nicola Roeulx | ||
| 1197 | x | ||
| 1201 | bishop John Benthune | ||
| 1219 | x | ||
| 1286 | bishop Guglielmo of Asvenes | ||
| 1296 | x | ||
| 1389 | bishop Andrea Wassenberg | ||
| 1396 | x | ||
| 1440 | bishop John of Borgogna-Orlean | ||
| 1480 | bishop Enrico of Glymes | ||
| 1502 | x | ||
| 1510 | bishop Giacomo Croy | ||
| 1516 | bishop Guglielmo Croy | ||
| 1521 | x | ||
| 1551 | bishop Roberto Croy | ||
| 1556 | x | ||
| 1601 | bishop Guglielmo Glymes | ||
| 1609 | x | ||
| 1648 | Union to Kingdom of France |