An engraving of Fortunio Liceti (1577–1657), scientist, philosopher and physician at the universities of Padua and Bologna, and from 1634 a tireless correspondent with Cassiano. This portrait appears after the introduction and before the table of contents in Liceti's De intellectu agente libros V (Padua 1627). He is shown here writing the book, the title of which is inscribed on the ends of its pages. Some of his other works, including De novis astris (Venice 1622), can also be identified on the shelves of his study. This print is lettered along the bottom: "FORTUNIUS LICETUS GENUENSIS PHIL. MED. / IN PATAVINO LYCEO PHYSIOLOGUS ORDINARIUS / M DC XXIV // Johan Tröschel. fecit.".

The print formed part of an album of portrait prints assembled by Cassiano dal Pozzo in Rome. Described in an early nineteenth-century inventory of prints in George III's library as Italian Lawyers, Physicians, &c, the album comprised 204 prints. It was dismantled later in the nineteenth century and its contents sold during the early twentieth century, when only a few of Cassiano's foreign non-royal portrait prints were retained for the collection.

For more information see Mark McDonald, The Print Collection of Cassiano dal Pozzo. I: Ceremonies, Costumes, Portraits and Genre, 3 vols, Royal Collection Trust 2017, part of The Paper Museum of Cassiano dal Pozzo: A Catalogue Raisonné, cat. no. 1567.