The story of the Mandylion is likely the product of centuries of development. The first version is found in
Eusebius'
History of the Church (1.13.5–1.13.22). Eusebius claimed that he had transcribed and translated the actual letter in the Syriac chancery documents of the king of Edessa. This records a letter written by King
Abgar of Edessa to Jesus, asking him to come cure him of an illness. Jesus replies by letter, saying that when he had completed his earthly mission and ascended to heaven, he would send a disciple (
Thaddeus of Edessa) to heal Abgar (and does so). At this stage, there is no mention of an image of Jesus. In AD 384,
Egeria, a pilgrim from either Gaul or Spain, was given a personal tour by the Bishop of Edessa, who provided her with many marvellous accounts of miracles that had saved Edessa from the Persians and put into her hands transcripts of the correspondence of Abgarus and Jesus, with embellishments. Part of her accounts of her travels, in letters to her sisterhood, survive. "She naïvely supposed that this version was more complete than the shorter letter which she had read in a translation at home, presumably one brought back to the Far West by an earlier pilgrim". Her escorted tour, accompanied by a translator, was thorough; the bishop is quoted: "Now let us go to the gate where the messenger Ananias came in with the letter of which I have been telling you." The Syriac
Chronicle of Edessa written in 540-550 also claim divine interventions in the siege, but does not mention the Image. Some fifty years later,
Evagrius Scholasticus in his
Ecclesiastical History (593) is the first to mention a role for the image in the relief of the siege, attributing it to a "God-made image", a miraculous imprint of the face of Jesus upon a cloth. Thus we can trace the development of the legend from a letter, but no image in Eusebius, to an image painted by a court painter in Addai, which becomes a miracle caused by a miraculously-created image supernaturally made when Jesus pressed a cloth to his wet face in Evagrius. It was this last and latest stage of the legend that became accepted in Eastern Orthodoxy, the image of Edessa that was "created by God, and not produced by the hands of man". This idea of an icon that was
Acheiropoietos (, ) is a separate enrichment of the original legend: similar legends of supernatural origins have accrued to other Orthodox icons. The
Ancha icon is reputed to be the
Keramidion, another
acheiropoietos recorded from an early period, miraculously imprinted with the face of Christ by contact with the Mandylion. To art historians it is a
Georgian icon of the 6th-7th century. According to the
Golden Legend, which is a collection of
hagiographies compiled by
Jacobus de Voragine in the thirteenth century, the king Abgarus sent an epistle to Jesus, who answered him writing that he would send him one of his disciples (
Thaddeus of Edessa) to heal him. The same work adds: ==Later events==