Jordaens' importance can also be seen by his number of pupils; the Guild of St. Luke records fifteen official pupils from 1621 to 1667, but six others were recorded as pupils in court documents and not the Guild records, so it is probable that he had more students than officially recorded. Among them were his cousin and his son Jacob. Like Rubens and other artists at that time, Jordaens' studio relied on his assistants and pupils in the production of his paintings. Not many of these pupils went on to fame themselves, however a position in Jordaens' studio was highly desirable for young artists from across Europe.