Caecilius Duilia Spartenos was a Greek General and eventually Dictator of the Roman Republic. The early stages of Duilia Spartenos' life are unknown, which is attributed to later emperor Decimus Valerius Corvus's order to destroy the history of all foreigners who gained high office in the Roman Republic. Through the insults of his political opponents that have survived, it is assumed that Duilia Spartenos is Greco-Roman in origin; this is further evidenced by his name Spartenos. Duilia Spartenos is believed to have entered the Roman Legions at a young age; by the time of Gnaeus Pompeius Magnus's death in 41 BC, he had advanced to the title of Legate, and was serving in Numidia.