Prints as sources : Ridolfo Sirigatti's marble Venus in an engraving after Stradanus; a print engraved by Hieronymus Wierix: "Amoris, en quanta vis", Venus by Ridolfo Sirigatti drawn by Johannes Stradanus (Antwerpen: Philips Galle, 1585/1590 circa) - Davis, Charles (Universitätsbibliothek der Universität Heidelberg, 2011)