| YEAR | DATE | EVENT | EARL |
| 1266 | Count - dinasty Mors | Dietrich II | |
| 1260 | Dietrich III | ||
| 1307 | Dietrich IV | ||
| 1346 | Federico II | ||
| 1356 | Dietrich V | ||
| 1372 | Federico III | ||
| 1399 | Federico IV | ||
| 1448 | Vincenzo | ||
| 1499 | Gerardo | ||
| 1501 | dinasty Runkel | Guglielmo III | |
| 1526 | dinasty Ahr | Guglielmo | |
| 1578 | earles Anna | ||
| 1600 | Count of Duchy of Kleve | ||
| 1538 | Union to Duchy of Kleve |