Gerasimus
a writer of uncertain date, author of a Chronographia or Chronicon, from which " a passage worthy of note concerning the eruption of Mt. Vesuvius, in the reign of Titus, and the cause of subterraneous fires, according to the opinion of the Christians of that time," &c., is quoted in the Eclogae Asceticae of Joannes the patriarch, extant in MS. in the Imperial Library at Vienna. Fabricius notices one or two other persons of the name. (Bibl. Graec. vol. xi. p. 630.)
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.