Passage 9.5.6
Λύκου δὲ ἐπιτροπεύοντος δεύτερον κατίασιν Ἀμφίων καὶ Ζῆθος δύναμιν ἀγείραντες. καὶ Λάιον μὲν ὑπεκκλέπτουσιν οἷς ἦν ἐπιμελὲς μὴ γενέσθαι τὸ Κάδμου γένος ἐς τοὺς ἔπειτα ἀνώνυμον, Λάκου δὲ οἱ τῆς Ἀντιόπης παῖδες τῇ μάχῃ κρατοῦσιν· ὡς δὲ ἐβασίλευσαν, τὴν πόλιν τὴν κάτω προσῴκισαν τῇ Καδμείᾳ καὶ Θήβας ὄνομα ἔθεντο κατὰ συγγένειαν τὴν Θήβης.
During the second regency of Lycus, Amphion and Zethus returned after gathering an army. Although Laius was secretly removed by those who were careful that the race of Cadmus should not become extinct in succeeding generations, the sons of Antiope overcame Lycus in battle. Thus, having secured kingship, they colonized the lower city around the Cadmeia and called it Thebes, after their kinship with Thebe.