| YEAR | DATE | EVENT | HEAD OF STATE |
| 1204 | 12 april | Kingdom - dinasty Aleramici | king Bonifacio |
| 1207 | king Demetrio I | ||
| 1224 | Empire -dinasty Angelo-Comneno | emperor Teodoro | |
| 1230 | emperor Manuele | ||
| 1240 | emperor John I | ||
| 1244 | emperor Demetrio II | ||
| 1246 | Union to Empire of Nicea | ||
| 1423 | december | Venice Occupation | |
| 1430 | 1 march | Union to Greece |