| YEAR | DATE | EVENT | HEAD OF STATE |
| 1068 | Count - dinasty Ezzoni | earl Adolfo I | |
| 1083 | earl Adolfo II | ||
| 1092 | earl Eberardo | ||
| 1093 | earl Adolfo III | ||
| 1106 | earl Adolfo IV | ||
| 1161 | earl Engelberto | ||
| 1189 | earl Adolfo V | ||
| 1218 | earles Irmengarda | ||
| 1226 | dinasty Limburgo | earl Enrico IV duke of Limburgo | |
| 1247 | earl Adolfo VI | ||
| 1259 | earl Adolfo VII | ||
| 1296 | earl Guglielmo I | ||
| 1308 | earl Adolfo VIII | ||
| 1348 | dinasty Heimbach | earl Gerardo VI | |
| 1360 | earl Guglielmo II | ||
| 1408 | earl Adolfo IX | ||
| 1437 | Count of Duchy of Julich | ||
| 1524 | Duchy of Duchy of Julich | ||
| 1539 | Duchy of Duchy of Kleve | ||
| 1614 | Duchy of Palatine Duchy of Neuburg | ||
| 1803 | Greatduchy - dinasty Wittelsbach | greatduke Guglielmo | |
| 1806 | dinasty Murat | greatduke Gioacchino | |
| 1808 | dinasty Bonaparte | greatduke Luigi Napoleone | |
| 1815 | Union to Markgraft of Brandeburg | ||
| 1918 | 9 november | Union to German State of Westfalia |