Jacob Taets van Amerongen (1542 – 4 December 1612) was a land commander of the Utrecht-based order of Teutonic Knights in what are now the Netherlands.He made the pilgrimage to the Holy Land as a young man. He became commander of the order at a time when Protestants were gaining control of northern Europe.He managed to resist demands to dissolve the order and use its property for charity.Soon after his death the order became a Protestant organization.