| Date | Type | Code | Name |
|---|---|---|---|
| 1994-07-01 | Association merger converted to a simple merger | 56198 | Rohan |
| 1994-07-01 | Association merger converted to a simple merger | 56217 → 56198 | Saint-Gouvry → Rohan |
| 1994-07-01 | Association merger converted to a simple merger | 56235 → 56198 | Saint-Samson → Rohan |
| 1974-06-01 | Association merger | 56198 | Rohan |
| 1974-06-01 | Association merger | 56217 → 56198 | Saint-Gouvry → Rohan |
| 1974-06-01 | Association merger | 56235 → 56198 | Saint-Samson → Rohan |
| 1943-01-01 | Creation | 56198 | Rohan |