Luxembourgish no relation Belgium
Belgium (as majority language only in the German-speaking Community, which represents 0.7% of the Belgian population)
Luxembourg, along with French and Luxembourgish
Switzerland, co-official at the federal level with French, Italian, and Romansh, and at the local level in four cantons: Bern (with French), Fribourg (with French), Grisons (with Italian and Romansh) and Valais (with French)
Italy, (as majority language only in the Autonomous Province of South Tyrol, which represents 0.6% of the Italian population)
no relation