The Histories · 5.112

On that day the Ionians for their part greatly distinguished themselves and overcame the Phenicians, and of them the Samians were best: and meanwhile on land, when the armies met, they came to close quarters and fought; and as regards the two commanders, what happened was this:--when Artybios came to fight with Onesilos sitting upon his horse, Onesilos, as he had concerted with his shield-bearer, struck at Artybios himself, when he came to fight with him; and when the horse put its hoofs against the shield of Onesilos, then the Carian struck with a falchion and smote off the horse's feet.

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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