In the Polish–Lithuanian Commonwealth (the Republic of Both Nations) there were few disseminators of the ideas of policism; the policist thought was developing rather slowly. While analysing the dissemination of theoretical ideas of policism in the 18th century Republic of Both Nations, we can view the influence of German and to some extent French policists and the adaptation of their ideas in the works of R. Ładowski, G. Lengnich and other disseminators of the ideas of policism. They took over theoretical postulates of German policists. The disseminators of the ideas of policism – residents of the Republic of Both Nations – accepted the German tradition of policism. Some of them (G. Lengnich, F. Nax and others) were of German origin and culture. Conversely, in the nearest German states as well as in the neighbouring German states of the Republic of Both Nations (Prussia, Saxony or Austria) cameralism and policism were already being developed at the academic level; therefore, it was easier to take over theoretical postulates than to rely on the ideas created and developed in their own state. After the collapse of the Polish–Lithuanian Commonwealth, the ideas and research of German scholars had further influence and were being successfully taken over in the Kingdom of Poland which was then both autonomous and dependent from Russia.