It was 300 years ago, in 1673, that Cornelius van Bynkershoek, the great Dutch lawyer and author on public and international law, was born. It is proper to commemorate this jurist of great reputation as he was still called in 1812 by an American court. For the Red Cross, being a product and perhaps the most important instrument, to-day, of international humanitarian law, should not forget that one of its main sources lies in the doctrine of international law, or law of nations, as it was developed by the great authors of former days, the founders of international law. Although everyone will have in mind the name of Hugo Grotius, that of van Bynkershoek seems quite unknown. There may be some reason for this, but before trying to explain this anomaly we must try to get to know van Bynkershoek a little better.