Plato, Laws 708a

τὴν χώραν κατῳκισμένους. τὸ δὲ δὴ παρὸν ἡμῖν λέγε πόθεν ἔσεσθαι φῂς στρατόπεδον τῶν πολιτῶν τὰ νῦν; ἔκ τε Κρήτης συμπάσης ἔοικεν γενήσεσθαι, καὶ τῶν ἄλλων δὲ Ἑλλήνων μάλιστά μοι φαίνονται τοὺς ἀπὸ Πελοποννήσου προσδέξασθαι συνοίκους. καὶ γὰρ ὃ νῦν δὴ λέγεις, ἀληθὲς φράζεις, ὡς ἐξ Ἄργους εἰσίν, καὶ τό γε μάλιστʼ εὐδοκιμοῦν τὰ νῦν ἐνθάδε γένος, τὸ Γορτυνικόν· ἐκ Γόρτυνος γὰρ τυγχάνει ἀπῳκηκὸς ταύτης τῆς Πελοποννησιακῆς.

and other parts of Greece. So tell us now from what quarters the present expedition of citizens is likely to be drawn. It will probably be from the whole of Crete and of the rest of the Greeks, they seem most ready to admit people from the Peloponnese as fellow-settlers. For it is quite true, as you said just now, that we have some here from Argos, amongst them being the most famous of our clans, the Gortynian, which is a colony from Gortys, in the Peloponnese.