Agis II was a king of Sparta who reigned during the 3rd century BC, specifically from 427 to 401 BC. He was a member of the Agid dynasty and is known for his attempts to reform Spartan society and restore its traditional values. His reign was marked by military campaigns against the Persian Empire and involvement in the Peloponnesian War. Agis II sought to address social inequalities in Sparta by redistributing land and wealth among citizens. However, his reforms faced resistance from the wealthy elite, leading to political strife. Ultimately, his efforts to strengthen Sparta's power and influence were met with mixed results.