Grotius’s continuing influence owed much to the eighteenth-century French editor Jean Barbeyrac, whose extensive commentary was standard in most editions, including the classic English one (1738), the basis for the Liberty Fund edition, which includes the Prolegomena to the first edition (1625); this document has never before been translated into English. Hugo Grotius (1583–1645) was a lawyer and legal theorist, diplomat and political philosopher, ecumenical activist and theologian. Richard Tuck is a Fellow of Jesus College, Cambridge, and Professor of Government at Harvard University.