The models for the Danzig Law were the statute books of the Holy Roman Empire and of other Hanseatic cities, especially Lübeck.
Danzig had a special status, due to its large population (in 1772 47,600 inside the city walls, 35,000 to 40,000 outside), its harbour and wealth.
Some of its politicians maintained that it was loyal only to the King of Poland, claiming that its status was similar to an Imperial Free City.
[6] Lengnich wanted to find out whether "us Prussians ... are the Poles equal brothers or their servants"[7] and encouraged others to study local history, too.
Among others Michael Christoph Hanow, Georg Daniel Seyler and David Braun studied the history of their home towns.