John of Alexandria is an obscure figure. Little is known of his life: his floruit is placed in the first half of the seventh century A.D. He was a practising doctor; the exact significance of the epithet ‘sophista’ which is found on the superscription to his commentary on the sixth book of Hippocrates' Epidemics is uncertain: but it may indicate an interest beyond the purely medical. Apart from the commentaries on the Epidemics and De Sectis, the only other work ascribed (...) to him with any certainty is a commentary on the Hippocratic text On the Nature of the Child, although four other works traditionally attributed to Philoponus and of a purely medical nature have been ascribed to him. (shrink)