| Date | Type | Code | Name |
|---|---|---|---|
| 2019-01-01 | Creation of a new commune | 86277 | Varennes |
| 2019-01-01 | Creation of a new commune | 86277 → 86281 | Varennes → Saint-Martin-la-Pallu |
| 2019-01-01 | Deletion | 86277 | Varennes |
| 1980-01-01 | Restoration | 86277 | Varennes |
| 1980-01-01 | Restoration | 86160 → 86277 | Mirebeau → Varennes |
| 1973-01-01 | Association merger | 86277 | Varennes |
| 1973-01-01 | Association merger | 86277 → 86160 | Varennes → Mirebeau |
| 1973-01-01 | Deletion | 86277 | Varennes |
| 1943-01-01 | Creation | 86277 | Varennes |