1583-1645. Dutch jurist and politician, born in Delft. He became a lawyer, and later received political appointments. In 1618 he was arrested as a republican and sentenced to imprisonment for life: his wife contrived his escape in 1620, and he settled in France, where he composed the De Jure Belli et Pacis/On the Law of War and Peace 1625, the foundation of international law. He was Swedish ambassador in Paris 1634-45.