| YEAR | DATE | EVENT | HEAD OF STATE |
| 1091 | Count - dinasty Urach | earl Egino II | |
| 1105 | earl Egino III | ||
| 1160 | earl Egino IV | ||
| 1230 | earl Egino V | ||
| 1232 | earl Corrado I | ||
| 1272 | earl Goffredo | ||
| 1278 | Union to Count of Wurttemberg | ||
| 1419 | 2 july | Count - dinasty Wigerich | earl Ludovico I |
| 1450 | 23 september | earl Ludovico II | |
| 1457 | earl Eberardo I | ||
| 1457 | Duchy | duke Eberardo I | |
| 1496 | Union to Duchy of Wurttemberg |