Passage 6.12.1
πλησίον δὲ ἅρμα τέ ἐστι χαλκοῦν καὶ ἀνὴρ ἀναβεβηκὼς ἐπʼ αὐτό, κέλητες δὲ ἵπποι παρὰ τὸ ἅρμα εἷς ἑκατέρωθεν ἕστηκε καὶ ἐπὶ τῶν ἵππων καθέζονται παῖδες· ὑπομνήματα δὲ ἐπὶ νίκαις Ὀλυμπικαῖς ἐστιν Ἱέρωνος τοῦ Δεινομένους τυραννήσαντος Συρακουσίων μετὰ τὸν ἀδελφὸν Γέλωνα. τὰ δὲ ἀναθήματα οὐχ Ἱέρων ἀπέστειλεν, ἀλλʼ ὁ μὲν ἀποδοὺς τῷ θεῷ Δεινομένης ἐστὶν ὁ Ἱέρωνος, ἔργα δὲ τὸ μὲν Ὀνάτα τοῦ Αἰγινήτου τὸ ἅρμα, Καλάμιδος δὲ οἱ ἵπποι τε οἱ ἑκατέρωθεν καὶ ἐπʼ αὐτῶν εἰσιν οἱ παῖδες.
Nearby stands a bronze chariot with a man mounted upon it, and beside the chariot on either side is a racehorse with boys seated upon the horses. These memorials commemorate Olympic victories won by Hieron son of Deinomenes, who ruled Syracuse as tyrant after his brother Gelon. It was not Hieron who dedicated these offerings; rather, it was his son Deinomenes who presented them to the god. The chariot is the work of Onatas the Aeginetan, while the horses on either side and the boys riding them are by Calamis.