Passage 3.6.3
Κλεωνύμῳ δὲ ἀπελαθέντι τῆς βασιλείας περισσῶς δή τι ὁ θυμὸς ᾤδει, καὶ αὐτὸν οἱ ἔφοροι καὶ ἄλλοις γέρασι ψυχαγωγοῦντες καὶ ἐπὶ ταῖς δυνάμεσιν ἐφιστάντες ἄρχοντα παρῆγον μή ποτε πολέμιον γενέσθαι τῇ Σπάρτῃ. τέλος δὲ ὁ μὲν πολλά τε καὶ ἐχθρὰ ἐς τὴν πατρίδα ἐτόλμησε καὶ Πύρρον τὸν Αἰακίδου σφίσιν ἐπηγάγετο ἐς τὴν χώραν·
Cleonymus, driven away from the kingship, felt excessive bitterness in his heart. The ephors tried to soothe him by granting him honors of other sorts and appointed him as commander of armies, endeavoring to prevent him from ever becoming an enemy to Sparta. Despite this, he ultimately dared many hostile actions against his homeland and even brought Pyrrhus, the son of Aeacides, into their territory.