Passage 3.15.1
πρὸς δὲ τῷ Πλατανιστᾷ καὶ Κυνίσκας ἐστὶν ἡρῷον, θυγατρὸς Ἀρχιδάμου βασιλεύοντος Σπαρτιατῶν· πρώτη δὲ ἱπποτρόφησε γυναικῶν καὶ Ὀλυμπίασι πρώτη νίκην ἀνείλετο ἅρματι. ἔστι δὲ τῆς στοᾶς, ἣ παρὰ τὸν Πλατανιστᾶν πεποίηται, ταύτης ὄπισθεν ἡρῷα, τὸ μὲν Ἀλκίμου, τὸ δὲ Ἐναρσφόρου καὶ ἀφεστηκὸς οὐ πολὺ Δορκέως, τὸ δὲ ἐπὶ τούτῳ Σεβροῦ· παῖδας δὲ Ἱπποκόωντος εἶναι λέγουσιν.
Near the Platanistas there is also a hero-shrine of Cynisca, daughter of Archidamus, king of the Spartans. She was the first woman to breed horses and the first woman to win a chariot victory at Olympia. Behind the colonnade built beside the Platanistas stand hero-shrines: one for Alcimus, another for Enarsphorus, not far away one for Dorceus, and next to this, one for Sebrus. These figures, they say, were sons of Hippocoon.