Passage 6.4.7
εἰ δὲ Λυσίππου τοῦ ποιήσαντος τὴν εἰκόνα τεκμαιρόμενον τῇ ἡλικίᾳ συμβαλέσθαι δεῖ με τὸν πόλεμον ἔνθα ὁ Χίλων ἔπεσεν, ἤτοι ἐς Χαιρώνειαν Ἀχαιοῖς τοῖς πᾶσιν ὁμοῦ στρατεύσασθαι ἢ ἰδίᾳ κατʼ ἀρετήν τε καὶ τόλμαν Ἀχαιῶν μόνος Ἀντιπάτρου μοι καὶ Μακεδόνων ἐναντία ἀγωνίσασθαι περὶ Λάμιαν φαίνεται τὴν ἐν Θεσσαλίᾳ.
If I am to draw a conclusion from the age of Chilon based on the statue made by Lysippus, the war in which he fell appears to be either the campaign at Chaeronea, where all the Achaeans fought collectively, or else, standing alone among the Achaeans in valor and daring, he faced Antipater and the Macedonians by Lamia in Thessaly.