Luxembourg’s Constitution of 1848 was the first document to guarantee freedom of religion in the country’s independent history. Articles 20 and 21 specifically outline this right.

“Mémorial Législatif et Administratif du Grande-Duché de Luxembourg.” Strada Lex Luxembourg. Accessed July 26, 2023. https://www.stradalex.lu/fr/slu_src_publ_leg_mema/toc/leg_lu_mema_184807_52/doc/mema_1848A0389A