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| YEAR | DATE | EVENT | HEAD OF STATE |
| 781 | 15 april | Kingdom of Italy | king Pepin |
| 810 | 8 july | king Bernard I | |
| 818 | 17 january | king Louis I H.R.E. | |
| 820 | king Lothar I H.R.E. | ||
| 844 | 15 june | king Louis II H.R.E. | |
| 875 | 12 august | king Charles II H.R.E. | |
| 877 | 6 october | king Charles-man | |
| 879 | december | king Charles III H.R.E. | |
| 888 | 16 january | dinasty Unrochinger | king Berengar I (I) |
| 889 | february | dinasty Spoleto | king Guido I |
| 892 | 30 april | king Lambert I H.R.E. | |
| 894 | december | dinasty Carolingi | king Arnulf |
| 898 | dinasty Unrochinger | king Berengar I (II) | |
| 900 | 12 october | dinasty Bouvines | king Louis III (I) |
| 902 | dinasty Unrochinger | king Berengar I (III) | |
| 904 | dinasty Bouvines | king Louis III (II) | |
| 905 | dinasty Unrochinger | king Berengar I (IV) | |
| 922 | dinasty Arles | king Rudolph II | |
| 926 | 6 july | king Hugh | |
| 946 | king Lothar II | ||
| 950 | 15 december | dinasty Borgogna-Ivrea | king Berengar II |
| 951 | 23 september | king Otto I H.R.E. | |
| 961 | november | Kingdom of Italy united to H.R.E. | |
| 1002 | 25 february | dinasty Ivrea | king Arduin I |
| 1013 | december | Union to H.R.E. |