| YEAR | DATE | EVENT | HEAD OF STATE |
| 1140 | Lordship - dinasty Bronckhorst | ||
| 1533 | Count | earl Joost I | |
| 1553 | earl John | ||
| 1559 | earl Guglielmo | ||
| 1563 | earl Joost II | ||
| 1589 | earl John II | ||
| 1617 | earl Joost Massimiliano | ||
| 1662 | earl Ottone Guglielmo | ||
| 1713 | earl John Francesco | ||
| 1719 | Union to Count of Nassau |