Antigonus II Gonatas

Antigonus II Gonatas defeated the Celtic Galatians at Lysimachia, securing his control over Macedon. This victory ended the Gallic invasion threat and established the Antigonid dynasty's rule, stabilizing the kingdom after decades of chaos.

Antigonus II besieged Athens during the Chremonidean War, forcing the city to surrender. He imposed a Macedonian garrison, ending Athenian independence and consolidating Macedonian hegemony over Greece.

Antigonus II invited the Stoic philosopher Zeno of Citium to his court and later supported his successor, Cleanthes. He integrated Stoic ideals into his governance, promoting a philosophical kingship that emphasized duty and self-control.