Diophantus
3. Of Lacedaemon, is quoted by Fulgentius (Mythol. 1.1) as the author of a work on Antiquities, in fourteen books, and on the worship of the gods. Whether he is the same as the geographer, Diophantus, who wrote a description of the northern countries (Phot. Bibl. Cod. 250, p. 454b.), which is also quoted by Stephanus of Byzantium (s. v. Ἄβιοι), or the Diophantus who wrote a work πολιτικά (Steph. Byz. s. v. Λιβυστῖνοι), cannot be decided.
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.