Themistoclea (/ˌθɛmɪstəˈkliːə/; Ancient Greek: Θεμιστόκλεια Themistokleia; also Aristoclea (/ˌærɪstəˈkliːə/; Ἀριστοκλεία Aristokleia), Theoclea (/ˌθiːəˈkliːə/; Θεοκλεία Theokleia); fl. 6th century BCE) was, according to surviving sources, Pythagoras’ teacher while a priestess at Delphi.[1]