GRUNBERG, a city of Prussian Silesia, the capital of a circle of the same name. It is a fortified place, containing 1145 houses, and 9144 inhabitants. It is also a great manufacturing place for spinning cotton and linen, and for woollen cloths. In the neighbourhood are vineyards, which have been rapidly extending, and produce tolerable wine, but in some years more vinegar than wine. Fuller's earth is found copiously near the city. Long. 15. 26. E. Lat. 51. 57. N.