This body grew in size thanks to Lydiadas renouncing his tyrant ways and joining it.  Antigonus III Doson helped this body fight one of its chief rivals, a leader who succeede
This body grew in size thanks to Lydiadas renouncing his tyrant ways and joining it.  Antigonus III Doson helped this body fight one of its chief rivals, a leader who succeeded Agiad and who won victories against it at Mt. Lycaeum, (+) but ultimately lost at Sellasia.  Besides fighting the Spartans under Cleomenes III, one of its most popular leaders was potentially murdered for resisting Phillip V.  An unpopular late ruler of this body was Callicrates, while earlier the city of Sicyon (*) was brought into this polity by a man who served as general of it every other year of his life from 246 BCE, Aratus.  A partially lost history of one of its leaders, Philopoemen, was written by Polybius, who was sent to Rome as a hostage when it sided with Macedon in the Third Macedonian War.  Defeated by Corinth destroyer Lucius Mummius, FTP, identify this league of the northern Peloponnese.
This body grew in size thanks to Lydiadas renouncing his tyrant ways and joining it.  
{Achaean} League [or {Achaean} Confederation] (4)