A painting of the meeting between Attila the Hun and Pope Leo.
Public Domain. Courtesy of Wikipedia.
Raphael's "The Meeting between Leo the Great and Attila"
Attila was the fierce 5th century leader of the barbarian group known as the Huns who struck fear in the hearts of the Romans as he plundered everything in his path, invaded the Eastern Empire and then crossed the Rhine into Gaul. Attila the Hun was king of the Huns from 433 - 453 A.D. He attacked Italy, but was dissuaded from attacking Rome in 452 by Pope Leo the Great.