Passage 9.5.14
τὰς δὲ Θήβας ἑλόντες οἱ Ἀργεῖοι παραδιδόασι Θερσάνδρῳ Πολυνείκους παιδί. ὡς δὲ τοῖς σὺν Ἀγαμέμνονι ἐς Τροίαν στρατεύουσιν ἡ διαμαρτία τοῦ πλοῦ γίνεται καὶ ἡ πληγὴ ἡ περὶ Μυσίαν, ἐνταῦθα καὶ τὸν Θέρσανδρον κατέλαβεν ἀποθανεῖν ὑπὸ Τηλέφου, μάλιστα Ἑλλήνων ἀγαθὸν γενόμενον ἐν τῇ μάχῃ· καί οἱ τὸ μνῆμα ἐς Καΐκου πεδίον ἐλαύνοντί ἐστιν ἐν Ἐλαίᾳ πόλει, λίθος ὁ ἐν τῷ ὑπαίθρῳ τῆς ἀγορᾶς·
After taking Thebes, the Argives handed it over to Thersander, the son of Polyneices. Later, when those who marched with Agamemnon against Troy made their mistaken voyage and fought the unsuccessful battle around Mysia, Thersander met his end there, slain by Telephus, after having shown himself the bravest of the Greeks in that battle. His tomb stands within the city of Elaea, situated in the plain of the Caïcus; it is marked by a stone set openly in the marketplace.