بطليموس الثالث
Hippomedon of Sparta (3rd-century BC) was the cousin of Agis IV in Sparta. Hippomedon was instrumental in gaining for his father Agesilaus a powerful position under Agis, but Agesilaus mismanaged affairs and they were exiled. Subsequently Hippomedon was appointed as governor of the cities of Thrace which were subject to Ptolemy III Euergetes.