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| YEAR | DATE | EVENT | HEAD OF STATE |
| 1030 | County - dinasty Tonnerre | earl Rainard earl of Tonnerre | |
| 1038 | earl Milon I earl of Tonnerre | ||
| 1047 | earles Azeka | ||
| 10xx | earl Hugh Renaud earl of Tonnerre | ||
| 1085 | earl Milon II | ||
| 1125 | earl Guy | ||
| 1145 | earl Milon III | ||
| 1154 | earl Manasses | ||
| 1168 | earl Hugh | ||
| 1189 | earl Milon IV | ||
| 1218 | earl Laurence | ||
| 1223 | Union to County of Champagne |