Passage 1.11.4
Ὀλυμπιάδος δὲ ὡς ἐπεκράτησεν ἀνόσια μὲν ἐργασαμένης καὶ ἐς τὸν Ἀριδαίου θάνατον, πολλῷ δὲ ἔτι ἀνοσιώτερα ἐς ἄνδρας Μακεδόνας, καὶ διὰ ταῦτα οὐκ ἀνάξια ὕστερον ὑπὸ Κασσάνδρου παθεῖν νομισθείσης, Αἰακίδην οὖν κατʼ ἀρχὰς μὲν οὐδʼ αὐτοὶ διὰ τὸ Ὀλυμπιάδος ἔχθος ἐδέχοντο Ἠπειρῶται, εὑρομένου δὲ ἀνὰ χρόνον παρὰ τούτων συγγνώμην δεύτερα ἠναντιοῦτο Κάσσανδρος μὴ κατελθεῖν ἐς Ἤπειρον. γενομένης δὲ Φιλίππου τε ἀδελφοῦ Κασσάνδρου καὶ Αἰακίδου μάχης πρὸς Οἰνιάδαις, Αἰακίδην μὲν τρωθέντα κατέλαβε μετʼ οὐ πολὺ τὸ χρεών·
When Olympias rose to power—she having committed impious acts, going so far even as the death of Aridaeus, and others yet more unholy against Macedonian men, and therefore later judged to have suffered deservedly at the hands of Cassander—initially even the Epeirotes themselves, because of their hatred toward Olympias, refused to accept Aeacides. Over time, however, when he had obtained their forgiveness, Cassander still opposed his return into Epirus. Later, a battle having taken place near Oeniadae between Philip, Cassander's brother, and Aeacides, Aeacides, wounded in this encounter, met shortly thereafter the destined fate.