Cosmas and Damian. They were two Christian brothers, physicians by profession, from Arabia (3rd century). They practised medicine in Cilicia, Augusta Eufratensis (near Syria), never charging the sick and healing many. They were beheaded by order of Diocletian around the year 300. Saint Cosmas and Saint Damian visiting a sick person and administering aid. Engraving by Huyot from a painting by Francesco Peselli, 15th century.. "Vie Militarie et Religieuse au Moyen Age et a lEpoque de la Renaissance". Paris, 1877.