| YEAR | DATE | EVENT | HEAD OF STATE |
| 1003 | Count - dinasty Julich | earl Gerardo I | |
| 1029 | earl Eberardo | ||
| 1051 | earl Gerardo II | ||
| 1081 | earl Gerardo III | ||
| 1128 | earl Gerardo IV | ||
| 1143 | earl Guglielmo I | ||
| 1176 | earl Guglielmo II | ||
| 1207 | dinasty Heimbach | earl Guglielmo III | |
| 1218 | earl Guglielmo IV | ||
| 1278 | earl Walram | ||
| 1287 | earl Gerardo V | ||
| 1328 | earl Guglielmo V | ||
| 1357 | Duchy | duke Guglielmo V (I like duca) | |
| 1361 | duke Guglielmo II | ||
| 1393 | duke Guglielmo III | ||
| 1402 | duke Reinaldo IV | ||
| 1423 | duke Adolfo | ||
| 1437 | duke Gerardo VII | ||
| 1475 | duke Guglielmo IV | ||
| 1511 | duke John III | ||
| 1539 | Duchy of Duchy of Kleve | ||
| 1614 | Duchy of Palatine Duchy of Neuburg | ||
| 1806 | Duchy of Duchy of Berg | ||
| 1815 | Union to Markgraft of Brandenburg | ||
| 1918 | 9 november | Union to German State of Westfalia |