Seven Noble Houses of Brussels

The Seven Noble Houses of Brussels (also called the Seven Lineages or Seven Patrician Families of Brussels; French: Sept lignages de Bruxelles; Dutch: Zeven geslachten van Brussel; Latin: Septem nobiles familiae Bruxellarum) were the seven families or "lineages" whose descendants formed the patrician class and urban aristocracy of Brussels.

In the Middle Ages they formed a social class with a monopoly on the civil, military and economic leadership of the urban administration, with privileges that survived until the end of the Ancien Régime. However, as of the urban revolution of 1421, the representatives of the Guilds of Brussels also exercised similar offices. Still, the offices of aldermen and captains of the civic militias were reserved exclusively for members of the "Lineages".

The lengthy and rarely threatened supremacy of the Seven Houses of Brussels was based on a multitude of common interests they shared with the ducal dynasty of Brabant, as well as the successive Houses of Louvain, Burgundy and Habsburg. Together with the Guilds of Brussels, they comprised the freemen of the city.