Photographs of various prophets and sybils on the Sistine Chapel fresco by Michelangelo—painted in early 16th century (various photographers, early 21st century).
(via Wikimedia, Gloria Romanorum, History of Libya, & Pinterest)
Image from Marisa Ranieri Panetta’s Pompeii: History, Art, and Life in the Sunken City showing a detail of a photograph of a 1st century fresco depicting the god Bacchus and an agathodemon (aka agathodaimon aka agathodaemon) in front of Mount Vesuvius—originally from The House of the Centenary in Pompeii, currently displayed in the Archaeological Museum of Naples (photo by unknown, 2005).
(via Wikimedia Commons)
Photo of Raphael’s School of Athens fresco in The Vatican—painted 1509-1511 CE (photographer unknown, 21st century).
(via Wikipedia)
Portrait of Empedocles (Luca Signorelli, late 15th century).