The outlines of the following story appear in Procopius’s Wars (II.12.8).
The Assyrian king Abgar V governed a region that had its capital at the city of Edessa. The exact dates of his birth and death are not known, but he apparently ruled from around 4 B.C. to 7 A.D. and again from about 15 A.D. to 30 A.D. He was an ally and friend of the Roman Empire; the emperor Augustus knew him well and valued his counsel on Near Eastern affairs.