Bartolomeo Manfredi's 'St. John the Baptist' and its Mezzotint

Discussion of a lost painting by leading Caravaggio follower, Bartolomeo Manfredi, on the basis of a rare, late seventeenth-century edition in the British Library of prints after it and other pictures belonging to the leading collector and amateur painter and engraver, Jean-Baptiste Boyer d'Aguilles of Aix-en-Provence, considering the attribution of both the painting and the mezzotint after it (which may be either by Boyer himself or his in-house artist Sebastien Barras, or a joint effort of the two), and placing the volume in the British Library within the context of Boyer's early compilations of prints after his paintings, arguing that it may be the earliest known one. The authorship of other prints in the volume, and of some of the other paintings reproduced through them, is also touched upon.