Grotius, Pufendorf, and modern natural law

"Modern natural law commonly means a tradition in moral, political and legal pilosophy that began early in the seventeenth century and petered out some time in the eighteenth century, varying from country to country. It is also generally accepted that this tradition was a fruit of Protestantism, albeit one that had influence both on Catholic natural law teaching and, not least, on the thought of the French Enlightenment."