Jacobus Arminius (October 10, 1560 – October 19, 1609), the Latinized name of the DutchtheologianJakob Hermanszoon from the Protestant Reformation period, served from 1603 as professor in theology at the University of Leiden. He wrote many books and treatises on theology, and his views became the basis of Arminianism and the Dutch Remonstrant movement.