Hugo Grotius’s De iure belli ac pacis: A Report on the Worldwide Census of the Fourth Edition (1632, Janssonius)


 This is the fourth instalment of our census and study of the reception of the first nine editions of De iure belli ac pacis. Here we focus on the two versions that Johannes Janssonius issued in 1632, one with a copy of Mare liberum attached to it. This report outlines the place of the 1632 Janssonius edition in the context of his long-running rivalry with the printer Willem Blaeu and his firm. It then explores the typographical differences between the two issues, their causes, and their significance for our understanding of the reception of the text. Finally, it provides the preliminary results of the census concerning the circulation and provenance of the fifty-three copies of this edition that we have found. We hope that this research note on the preliminary results will attract interest in this edition and that readers will kindly inform us of further copies.