Eindelijk eens een touristische gids waar jullie iets aan hebben:

De Koninck, an ancient form of the Flemish word for king, is the city’s only major commercial brewery. It produces a world classic beer, a warm-fermented ale so loved and in such demand that just about every bar in Antwerp serves it.
So you need never ask for “a De Koninck”, simply for “a bolleke”.
And try not to laugh.

Beer Drinking in Antwerp