One of the most important medieval documents in the history of medicine and scholarship, and of culture in general, is doubtless the bibliographical treatise (“epistle”, Risāla) by Ḥunayn b. Isḥāq (808-873) addressed to his patron and patron of the arts, the gentleman courtier ‘Alī b. Yaḥyā b. al-Munaǧǧim (d. 275 / 888-889), listing the translations of Galen into Syriac and Arabic. Its transmission and publication history, though, is extremely complicated.