Jacob made efficient use of his designs. Some resurface in different mediums: in prints, and in stained-glass windows, liturgical vestments and paintings. Despite all these different techniques, the master’s style is always recognisable.
Jacob was a great networker who knew how to find patrons. It was no coincidence that he chose to locate his workshop close to Holy City chapel on Kalverstraat, where the pilgrims flocked. Here he sold religious prints to pilgrims as souvenirs of their journey. As the burgher class grew, he catered to their tastes too, taking private commissions for paintings. Jacob mixed with the best circles. His great patron was Pompeius Occo, a merchant, banker and art connoisseur who also lived on Kalverstraat, a stone’s throw away. Occo brought him many commissions for Amsterdam’s numerous monasteries and convents, as well as for leading burghers.