What organization has one of its official capitals in the country which contains the village of Nothum?
Nothum: Nothum (Luxembourgish: "Noutem" ) is a village in the commune of Lac de la Haute-Sûre, in north-western Luxembourg. Luxembourg: Luxembourg ( ) (Luxembourgish: "Lëtzebuerg" ] ; French: "Luxembourg" , German: "Luxemburg" ), officially the Grand Duchy of Luxembourg, is a landlocked country in western Europe.
i don't know