I came across this rapidly sketched ink drawing on the flyleaf of a 1570 Lyon edition of Sallust’s work on the Conspiracy of Catiline in @bsb_muenchen and I wondered if I could track down who was supposed to be the sitter in this portrait...
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Published by Antoine Gryphe, the text followed Aldus Manutius’s 1509 Venetian edition but the dedication to Bartolomeo Liviano d'Alviano was cut and the man portrayed resembled a pope sitting in the manner of Julius II in the trend-setting portrait by Raphael... 2/4
But which pope? A clue was given by the finials of the chair which seem to be dragons... the heraldic symbol used by Gregory XIII - pope from 1572 (just after the book was printed) to 1585 - but none of the portraits accessible online correspond exactly... 3/4