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| YEAR | DATE | EVENT | HEAD OF STATE |
| 855 | 22 september | Kingdom of Lotaringia - dinasty Carolingi | king Lotario II |
| 869 | 8 august | king Carlo II H.R.E. | |
| 877 | 6 october | king Ludovico II King of France | |
| 879 | 10 april | king Ludovico III King of France | |
| 882 | 5 august | king Carlo III H.R.E. | |
| 887 | 11 november | king Arnolfo King of Germany | |
| 895 | king Zwentibold | ||
| 900 | Duchy - dinasty Hainaut | duke Ranieri earl of Hainaut | |
| 916 | duke Giselbert | ||
| 940 | duke Henry I H.R.E. | ||
| 943 | duke Otto | ||
| 944 | duke Conrad | ||
| 953 | duke Bruno arcibishop of Koln | ||
| 959 | Division into Upper and Lower Lorena | ||
| 959 | Duchy Upper Lorena - dinasty Wigerich | duke Frederick I | |
| 984 | duke Thierry I | ||
| 1026 | 2 january | duke Frederick II | |
| 1027 | duke Frederick III | ||
| 1033 | duke Gozelo I dukeof Lower Lorena | ||
| 1044 | duke Godfrey IV duke Lower Lorena | ||
| 1047 | dinasty Matfried | duke Adalbert | |
| 1048 | duke Gerard | ||
| 1070 | 6 march | duke Thierry II | |
| 1115 | 23 january | duke Simon I | |
| 1128 | Duchy of Lorena | ||
| 1139 | 19 april | duke Matthew I | |
| 1176 | 13 may | duke Simon II | |
| 1205 | duke Frederick I | ||
| 1206 | duke Frederick II | ||
| 1213 | 10 october | duke Theobald I | |
| 1220 | march | duke Matthew II | |
| 1251 | 24 june | duke Frederick III | |
| 1303 | 31 december | duke Theobald II | |
| 1312 | 13 may | duke Frederick IV | |
| 1328 | 23 august | duke Rudolf | |
| 1346 | 26 august | duke John I | |
| 1390 | duke Charles I | ||
| 1431 | 29 january | Dinasty Valois-Angio' | duke René I |
| 1453 | 26 march | duke John II | |
| 1470 | 13 december | duke Nicholas I | |
| 1473 | 24 july | dinasty Matfried | duke René II |
| 1508 | 10 december | duke Anthony | |
| 1544 | 14 june | duke Francis I | |
| 1545 | 12 june | duke Charles III | |
| 1608 | 14 may | duke Henry II | |
| 1624 | 31 july | duke Nicholas II | |
| 1625 | 26 november | duke Charles IV | |
| 1625 | duke Francis II | ||
| 1634 | 19 january | French Occupation | |
| 1661 | Duchy - dinasty Matfried | duke Charles III (II) | |
| 1670 | september | French Occupation | |
| 1697 | 30 october | Duchy - dinasty Matfried | duke Leopold |
| 1729 | 27 march | duke Francis I H.R.E. | |
| 1736 | 15 december | dinasty Leszezynsky | duke Stanislaw King of Polonia |
| 1766 | 23 february | Union to Kingdom of France |