Xanthippus — quick study in typography
One thing I LOVE is reading ancient historians. I've come across this guy named Xanthippus (pronounced Zan-thippus) twice lately reading about the first Punic War between Rome and Carthage. He's got a rather obscure history but what is written is that he was a Greek (likely Spartan) mercenary general who took a small contingent of men to Carthage to train the Carthaginian army how to properly fight the Romans. The result was a complete route of the Roman army and the capture of their general.
Xanthippus met the Romans one more time in which he broke their siege and routed them again before sailing back to Greece.
**There's no conclusive history about him.