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| YEAR | DATE | EVENT | HEAD OF STATE |
| 951 | Count - dinasty Wigerich | earl Frederic I duke of Lorena | |
| 990 | earl Thierry I duke of Lorena | ||
| 1026 | earl Frederic II duke of Lorena | ||
| 1033 | Count - dinasty Wigerich | earles Sophie | |
| 1093 | dinasty Sundgau | earl Thierry II | |
| 1102 | earl Rainald I | ||
| 1150 | earl Rainald II | ||
| 1170 | earl Henry I | ||
| 1191 | earl Theobald I earl Luxemburg | ||
| 1214 | earl Henry II | ||
| 1240 | earl Theobald II | ||
| 1291 | earl Henry III | ||
| 1302 | earl Edward I | ||
| 1337 | earl Henry IV | ||
| 1344 | earl Edward II | ||
| 1352 | earl Robert I | ||
| 1354 | Duchy | duke Robert I | |
| 1411 | duke Edward III | ||
| 1415 | duke Louis | ||
| 1431 | dinasty Valois-Angio' | duke René I duke of Lorena | |
| 1473 | Union to Duchy of Lorena |