In 1807 his submission was rewarded with the duchy of Warsaw (to which Cracow and part of Galicia were added in 1809) and the district of Cottbus, though he had to surrender some of his former territory to the new kingdom of Westphalia.
The chief seats of this manufacture are the RhenishdistrictsofAix-la-Chapelle, Dtiren, Eupen and Lennep, Brandenburg, Saxony, Silesia and lower Lusatia, the chief centres in this group being Berlin, Cottbus, Spremberg, Sagan and Sommerfeld.
In the town of Schmiedeberg in the last district, as also in Cottbus (Lusatia), oriental patterns are successfully imitated.
At one time Cottbus formed an independent lordship of the Empire, but in 1462 it passed by the treaty of Guben to Brandenburg.
Cottbus and Peitz in Lusatia were acquired, and retained after a quarrel with George Podiebrad, king of Bohemia, and the new mark of Brandenburg was purchased from the Teutonic order in 1454.