Belgium–Luxembourg relations German-speaking municipality of Burg-Reuland in the province of Liège. Belgium–Luxembourg relations Belgium–Luxembourg relations are the bilateral relations between the Kingdom of Belgium and Grand Duchy of Luxembourg. Both countries have a history of close cooperation, notably within the Belgium–Luxembourg Economic Union, Benelux and within the European Union. Belgium has an embassy in Luxembourg and Luxembourg has an embassy in Brussels. The Belgian ambassador to Luxembourg is Thomas Antoine. The Luxembourg ambassador to Belgium is Jean-Jacques Welfring. Belgium and Luxembourg share a land border. On the Belgian side of the border, nearly all of it is with the province of Luxembourg;
Provinces of Belgium and Luxembourg, as well as parts of modern Germany and France, comprised a number of rival and independent feudal states of varying sizes. These each had their own identities and governments, though in the early modern period almost all the Belgian states became part of larger entities (the Seventeen Provinces (1549-1581) and the Southern Netherlands (after 1581)). Prominent early states in the area of modern Belgium included the Duchy of Brabant, the County of Flanders, the Prince-Bishopric of Liège and the Duchy of Luxembourg; smaller ones included the County of Hainaut, the Duchy of Limburg and the County of Namur,