There could be a possible link to Alexander and his cavalry. They were very effective. I think he called them companion cavalry. Alexander also fancied himself the son of Zeus and travelled to more than one temple of zeus to consult oracles to see if he truly was the son of zeus. He went to Tyre and then to one in egypt. They replied in the affirmative in egypt, so says alexander, the only witness. That's the link I see between zeus and ancient cavalry.