Lilienthal, the former of whom began with Gelehrtes Preussen (1722), continued under different titles down to 1729; the latter helped with the Erldutertes Preussen (1724), and was the sole editor of the Acta borussica (1730-1732).
About the close of this period we have some valuable writers on Polish history, which now began to be studied critically, such as Hartknoch in his Altand Neues Preussen (1684), a work in which are preserved interesting specimens of the old Prussian language, and Lengnich (1689-1774), author of the valuable Jus publicum regni Poloniae, which appeared in 1742.
The title Prinz von Preussen, therefore, excludes any idea of territorial sovereignty, whereas the correct German rendering of that of prince of Wales, which originally at least implied such sovereignty, would be Fiirst von Wales.
The "Vaticinium" was first published in Lilienthal's Gelehrtes Preussen (Konigsberg, 1723), and has been many times reprinted.
These include four volumes entitled Preussen im Bundestag, 1851-1859 (4 vols., Leipzig, 1882-1885), which contain his despatches during the time he was at Frankfort.