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| YEAR | DATE | EVENT | HEAD OF STATE |
| 872 | Count-bishopland | earl bishop Aicardo | |
| 882 | x | ||
| 901 | earl bishop Vitale | ||
| 926 | earl bishop Manasse | ||
| 965 | earl bishop Giraldo | ||
| 967 | earl bishop Rodolfo | ||
| 968 | earl bishop Ambrogio | ||
| 974 | x | ||
| 995 | earl bishop Lamberto | ||
| 1000 | earl bishop Girolamo | ||
| 1004 | earl bishop Lindigerio I | ||
| 1013 | earl bishop Teobaldo | ||
| 1027 | earl bishop Astolfo | ||
| 1046 | earl vescoco Liudigerio II | ||
| 1066 | x | ||
| 1080 | earl bishop Ezzelino | ||
| 1104 | earl bishop Toringo | ||
| 1117 | earl bishop Enrico II | ||
| 1131 | earl bishop Lotario | ||
| 1146 | earl bishop Uberto I | ||
| 1158 | earl bishop Ariberto | ||
| 1179 | Lordship - dinasty Da Romano | sire Ezzelino I | |
| 1193 | sire Ezzelino II | ||
| 1214 | Free Common | ||
| 1236 | Lordship - dinasty Da Romano | sire Ezzekino III | |
| 1259 | Republic | ||
| 1266 | Lordship - Dinasty Da Carrara | sire Marsiglio | |
| 1297 | sire Jacopino | ||
| 1311 | dinasty Della Scala | sire Bartolomeo sire of Treviso | |
| 1333 | sire Giovanni sire of Treviso | ||
| 1359 | sire Guglielmo | ||
| 1387 | dinasty Visconti | sire Giangaleazzo duke of Milan | |
| 1402 | 3 september | sire Giovanni Maria duke of Milan | |
| 1404 | 25 april | Union to Republic of Venice |