Analysis of information sources in references of the Wikipedia article "Panathenaic Games" in English language version.
As for Athena, they say that she was daughter of Poseidon and the Tritonian lake", "They celebrate a yearly festival of Athena, where their maidens are separated into two bands and fight each other with stones and sticks, thus (they say) honoring in the way of their ancestors that native goddess whom we call Athena