Xanthippus of Carthage
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Xanthippus (Ancient Greek: Ξάνθιππος) of Lacedaemon, also known as Xanthippus of Carthage, was a Spartan mercenary general employed by Carthage during the First Punic War. He led the Carthaginian army to considerable success against the Roman Republic during the course of the war, training the army to a professional standard before defeating the Romans at the Battle of Tunis, where Carthaginian forces routed the Roman expeditionary force and captured the Roman consul Marcus Atilius Regulus in 255 BC.
Diodorus says that Xanthippus was the leader of a small band of Spartan mercenaries drafted by Carthage during the war. Polybius tells us that he first came to the attention of the Carthaginian leaders when he criticised the behaviour of Carthage's generals, arguing that it was they, and not the Romans who were causing setbacks. Having been summoned to explain himself to Carthage's elite, he successfully argued his case and was placed in command of the Carthaginian army. Despite initial concern amongst the Carthaginians that Xanthippus would not be up to the task, he swiftly proved himself by successfully drilling the Carthaginian army and gained the approval of the soldiery.
Polybius credits Xanthippus with the Carthaginian formation at the Battle of Tunis. He placed the citizen phalanx in the centre of his formation, with the experienced mercenaries holding the right flank. His elephants he placed "a suitable distance" ahead of the phalanx, and his cavalry on his wings supported by more mercenary infantry, where they were able to use their numerical superiority to overwhelm their Roman counterparts and attack the Roman flanks, routing the Roman forces. Having defeated the Roman force in Africa, Polybius says that Xanthippus sailed home for Greece.
Diodorus gives an account of Xanthippus' death. After the Battle of Tunis, Xanthippus stopped in the city of Lilybaeum which was besieged by the Romans. He inspired courage and led an attack defeating the Romans. Jealous of Xanthippus's success, the city betrayed him by giving him a leaky ship and he supposedly sank in the Adriatic Sea on his voyage home. Scholar John Lazenby argues that this story is completely implausible, a claim supported by a report of a Xanthippus being made governor of a newly acquired province by Ptolemy Euergetes of Egypt in 245 BC. It is further supported by Polybius' assertion that Xanthippus returned to Greece rather than stopping in Lilybaeum, a more likely claim as Polybius lived closer to Xanthippus' time than Diodorus.
Silius Italicus writes that Xanthippus was originally from Amyclae in Laconia, but this may as well be an invention for metric convenience. He also claims that three sons of Xanthippus, named Xantippus, Eumachus and Critias, served under Hannibal as mercenary cavalrymen and were killed in the Battle of Ticinus.