https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8978619Edit ImageSaveSaveEditCropCustom TextSubmission of the Emperor Frederick Barbarossa to Pope Alexander III by Federico ZuccaroOriginal public domain image from Art Institute of ChicagoMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1157 px | 300 dpiLarge JPEG 3000 x 2893 px | 300 dpiFree DownloadSubmission of the Emperor Frederick Barbarossa to Pope Alexander III by Federico ZuccaroMore