Marienthal (Luxembourgish: Mariendall) is a village in the commune of Helperknapp, in western Luxembourg. As of 2024[update], the village has a population of 122.[1] It is known for its former monastery, of which a few buildings remain.
- ^ "Registre national des personnes physiques RNPP : Population par localité". data.public.lu. 2024-01-07.