Speculum Romanae Magnificentiae: Small Portraits of the Popes from Christ to Innocent IX (c. 1580), https://www.metmuseum.org/art/collection/search/403852
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Speculum Romanae Magnificentiae: Small Portraits of the Popes from Christ to Innocent IX (c. 1580), https://www.metmuseum.org/art/collection/search/403852