Baron von, eminent German jurist, born at Chemnitz, Saxony; wrote several works on jurisprudence, one of which, under the ban of Austria, was burned there by the hangman, but his "De Jure Naturæ et Gentium" is the one on which his fame rests; was successively in the service of Charles XI. of Sweden and the Elector of Brandenburg (1632-1694).