Pope John XIV — Cropped and colored by alasnome - original illustration is from The Lives and Times of the Popes by Chevalier Artaud de Montor, New York: The Catholic Publication Society of America, 1911. It was originally published in 1842.
Photo Credit: By Artaud de Montor (1772–1849) - Public Domain, https://commons.wikimedia.org/w/index.php?curid=26623910