Cosmas
Κοσμᾶς
(Κοσμᾶς), a celebrated physician, saint, and martyr, who lived in the third and fourth centuries after Christ. He is said to have been the brother of St. Damianus, with whose name his own is constantly associated, and under which article the particulars of their lives and deaths are mentioned.
Works
Medical Prescription
A medical prescription attributed to them is preserved by Arraldus Villanovanus.
Editions
Antidot. p. 453, in Opera, ed. Basil. 1585.
Homilies in MS.
There are several Greek homilies still extant in MS., written or preached in their honour. Their memory is observed by the Greek and Roman Churches on the 27th of September.
Further Information
Acta Sanct., Sept. vol. vii. p. 428; Börner, De Cosma et Dam... Commentatio, Helmest. 1751, 4to.; Fabric. Bihl. Gr. vol. ix. p. 68, 13.128, ed. vet.; Bzovius, Nomenclator Sanctorum Professione Medicorum; Carpzovius, De Medicis ab Ecclesia pro Sanctis habitis.
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.