Codex Germaniae diplomaticus, worinnen viele vortreffliche... zur Illustration der Teutschen Reichs-Historie und Juris Publici höchstnöthige Documenta enthalten sind, welche ... weiter in dem Teutschen Reichs-Archiv, noch dessen Continuationen und Spicilegiis zu befinden ... sind: nebst Elenchis und einem Haupt-Register

The Codex Germaniae diplomaticus was compiled by the prolific German jurist and chronicler Johann Christian Lünig during the early 18th century. Published in Frankfurt and Leipzig between 1732 and 1735, this extensive collection was intended to serve as a vital repository of primary source documents concerning the history of the Holy Roman Empire and German public law. Lünig curated these volumes to address the limitations of existing legal archives, specifically capturing documents that had been excluded from earlier major compilations like the Reichs-Archiv.

Lünig designed the work to function as a scholarly bridge for historians and jurists, providing access to diplomatic records, treaties, and legal manuscripts that were often difficult to locate. By including comprehensive indices and organized tables of contents, Lünig aimed to turn a sprawling mass of administrative history into a functional reference tool. Upon its release, it was recognized as a significant effort to codify the complex legal landscape of the empire, becoming a staple for academic libraries and legal scholars specializing in the jurisprudence of the period.