[1][2][3][4] The Sweerts House was charged with the defence of the Flanders Gate, seconded as of 1422 by the nation of Saint-Gilles.
Party per pale pily of four and a half argent on gules.
The Seven noble houses of Brussels (French: sept lignages de Bruxelles, Dutch: zeven geslachten van Brussel) were the seven families of Brussels whose descendants formed the patrician class of that city, and to whom special privileges in the government of that city were granted until the end of the Ancien Régime.
Together with the Guilds of Brussels they formed the Bourgeoisie of the city.
Content in this edit is translated from the existing French Wikipedia article at fr:Lignage Sweerts; see its history for attribution.