This is something I just heard,
and I can’t attest to the accuracy of it but….on a statue with a military rider,
the horse's pose describes how the rider died. So if the statue has a horse with
both front hooves in the air, that means that the rider died in battle. If the
horse is posed with one front leg up, that means that the rider was wounded in
battle or died of battle wounds and if all four hooves are on the ground that
means the rider died of causes outside of battle.