Provinces of Belgium
Most of the provinces take their name from earlier duchies and counties of similar location, while their territory is mostly based on the departments installed during French annexation. At the time of the creation of Belgium in 1830, only nine provinces existed, including the province of Brabant, which held the city of Brussels. In 1995, Brabant was split into three areas: Flemish Brabant, which became a part of the region of Flanders; Walloon Brabant, which became part of the region of Wallonia; and the Brussels-Capital Region, which became a third region. These divisions reflected political tensions between the French-speaking Walloons and the Dutch-speaking Flemish; the Brussels-Capital Region is officially bilingual.
Belgian Federal Parliament
The number of seats in the Chamber is constitutionally set at 150 elected from 11 electoral districts. The districts are divided along linguistic lines: 5 Flemish (79 seats), 5 Walloon (49 seats), and the bilingual district of Brussels-Halle-Vilvoorde (22 seats).
The districts are the provinces, except for the districts of Leuven (part of Flemish Brabant) and Brussels-Halle-Vilvoorde. Each district is given a number of seats proportional to its population (not number of voters) ranging from 4 for Luxembourg to 24 for Antwerp.
All districts have an electoral threshold of 5%, except for Brussels-Halle-Vilvoorde and Leuven; all districts are monolingual, except for Brussels-Halle-Vilvoorde which encompasses both the 19 bilingual municipalities from the Brussels-Capital region and some 35 Dutch-speaking municipalities in Flemish Brabant, incl. 7 with language facilities for French-speakers.