The roman abbey in Hesse has been listed as a french Monument Histotique since 1866. It houses the tombstones of Pope Leo IX's family.
- Pratique de l'activité : Outdoor, Indoor
- Conditions of visit (individuals) : Visit on your own at all times
- Category of tourist venue - historic building : Listed historic monument (MH)
- Styles or dates of tourist venue - historic building : Romanesque mediaeval