Passage 7.3.3
Ἴωνες δὲ ὅρκους ποιησάμενοι πρὸς τοὺς ἐν Κολοφῶνι Ἕλληνας συνεπολιτεύοντο, οὐδὲν ἔχοντες πλέον· βασιλείαν δὲ Ἰώνων ἡγεμόνες Δαμασίχθων λαμβάνει καὶ Πρόμηθος Κόδρου παῖδες. Πρόμηθος δὲ ὕστερον τὸν ἀδελφὸν Δαμασίχθονα ἀποκτείνας ἔφυγεν ἐς Νάξον, καὶ ἀπέθανε μὲν αὐτόθι ἐν τῇ Νάξῳ, τὸν νεκρὸν δὲ οἴκαδε ἀπαχθέντα κατεδέξαντο οἱ Δαμασίχθονοε παῖδες· καὶ ἔνθα ὁ τοῦ Προμήθου τάφος, Πολυτειχίδες ὄνομά ἐστι τῷ χωρίῳ.
The Ionians made oaths and shared citizenship equally with the Greeks in Colophon, obtaining no advantage over them. The leadership of the Ionian kingship was taken by Damasichthon and Promethus, the sons of Codrus. Later, Promethus, having slain his brother Damasichthon, fled to Naxos, where he died on the island. His body was afterward brought back to his homeland and received by the sons of Damasichthon. The tomb of Promethus is located there, in a place called Polyteichides.