Herodorus (Ancient Greek: Ἡρόδωρος), also called Herodorus of Heraclea (Ancient Greek: Ἡρόδωρος ὁ Ἡρακλεώτης)^[1] was a native of Heraclea Pontica^[2] and wrote a history on Heracles around 400 BC.^[3] Plutarch references Herodorus several times in his account of Theseus in Parallel Lives. He is among the authors (= FGrHist 31) whose fragments were collected in Felix Jacoby's Fragmente der griechischen Historiker.