Popes and other churchmen: twenty portraits. Engraving by J.W. Cook, 1825. https://www.rawpixel.com/image/13979494/popes-and-other-churchmen-twenty-portraits-engraving-jw-cook-1825Free Image from public domain licenseNicolas Copernicus explaining his planetary system to Alexander VI and artists of the Papal court. Photomechanical… https://www.rawpixel.com/image/14005181/image-person-art-clothingFree Image from public domain license