| Date | Type | Code | Name |
|---|---|---|---|
| 2010-06-01 | Association merger converted to a simple merger | 80309 → 80566 | Fieffes → Fieffes-Montrelet |
| 2010-06-01 | Association merger converted to a simple merger | 80566 | Fieffes-Montrelet |
| 1975-01-01 | Deletion | 80566 | Montrelet |
| 1975-01-01 | Association merger | 80309 → 80566 | Fieffes → Fieffes-Montrelet |
| 1975-01-01 | Association merger | 80566 | Montrelet → Fieffes-Montrelet |
| 1943-01-01 | Creation | 80566 | Montrelet |