Salve Nantonos

I'm afraid I have found nothing more on the subject than the mention of Epona in one of the Fasti, and in that no more than the appearance of Her name. All other information I had learned came from mi amici in Britannia. They knew something of Her cultus in Britannia and Gaul, but nothing that was specifically Roman.

The references in Pausanius to a mare-headed goddess has Demeter searching for Kore. When Poseidon chases after Her, She transformed into a mare and He followed as a steed. Afterward She cleansed Herself in the Ladon River. Pausanius 8.25.5-7 says that Demeter gave birth to two children from this rape. A horse named Areion and a daughter "whose name they are not wont to divulge to the uninitiated."

Pausanius 8.42.1 ff. says the Arcadians call the daughter The Mistress, at a cave sanctuary on Mt Elaius, Her image being that of a horse's haed on the body of a woman. She has a horse's mane with snakes and other animals growing from it. In one hand She holds a dolphin and in the other a dove.

But as for Epona, everything I find relates to Her Celtic images, even in Roman settings, and nothing of a Roman connection. Not anything on how early She was adopted into Roman cultus either, but I assume this was early empire as I have found nothing yet to make an earlier connection,