Moresnet

(from the article `Eupen-et-Malmédy`) ...to the Ourthe département (the present Liège province). Most of the region was annexed by Prussia as a result of the Treaty and Congress of Vienna ...
Found on http://www.britannica.com/eb/a-z/m/120

Moresnet

Moresnet (môrānā') , district, 1.5 sq mi (3.9 sq km), Liège prov., E Belgium, near the German border. It was formerly a lead- and zinc-mining center. Under joint Prussian and Dutch (after 1830, Belgian) suzerainty from 1816, it was awarded (1919) to Belgium under the Treat...
Found on http://www.infoplease.com/ce6/world/A0834010.html
No exact match found