The existing icon of Panagia Soumela was iconographed by the Evangelist Luke who was both a physician and an iconographer. According to tradition, whenever Luke drew icons of Panagia, the Holy Mother was very pleased and blessed his works. Furthermore, she encouraged him to draw more icons. When Luke died, his disciple named Ananias, took the icon and transferred it to the Church in Athens dedicated to Panagia. The icon was venerated as Panagia Athiniotissa.
via The History of the icon of Panagia Soumela – Pontos World.