GROTIUS. Hugo. The law of war and peace... Paris. Arnould Seneuze. 1687. 2 volumes in-4, full calf, ornate ribbed spines, red titles. First edition in French, illustrated with a frontispiece and portrait by Courtin, the translator. A major work by Grotius, this reflection on political philosophy had a considerable impact on modern international law. It defines relations between nations as dominated by a higher natural law and theorizes the first principles of just war. Minor foxing, binding rubbed, minor worm damage to spine.