La Republica reported Sunday that Harvard student Anthony Zonfrell found the Hollywood actor's image in a fresco called the Stanza della Signatura, a fresco painted by Raphael Sanzio da Urbino in 1511.
"We just saw it, we realized that it was a perfect copy of Stallone, something really funny," said Zonfrell.
Zonfrell was visiting the Vatican Museums with his family. La Republica said a cousin first noticed the image, a main character of the fresco, which Zonfrell identified as a possible double for Stallone.
Celebrity Families of 2014 [PHOTOS]