| YEAR | DATE | EVENT | EARL |
| 1225 | Count - dinasty Ezzoni | Adolfo I earl of Altena | |
| 1249 | Engelberto I | ||
| 1277 | Eberardo I | ||
| 1308 | Engelberto II | ||
| 1328 | Adolfo II | ||
| 1347 | Engelberto III | ||
| 1391 | Dietrich I | ||
| 1406 | Gerardo | ||
| 1461 | Count of Duchy of Kleve | ||
| 1614 | Count of Markgraft of Brandenburg | ||
| 1806 | Union to Markgraft of Brandenburg | ||
| 1918 | 9 november | Union to German State of Westfalia |