Jan Frans Van Douven ( 1656 - 1727 ) was a German painter. Jan Frans Van Douven s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 5886.68 USD for RITRATTO DI GIOVANNI GUGLIELMO VON DER PFALZ, ELETTORE PALATINO; ANNA MARIA LUISA DE MEDICI in 2004 to 8102.45 USD for PORTRAIT OF ANNA MARIA LUISA DE' MEDICI (1667-1743), WIFE OF JOHANN