Why was the Spartan king Agis IV executed?

by TheHondoGod

It say's he was the only Spartan king ever executed. Did he piss off the wrong people or lose a war?

XenophonTheAthenian

Sparta, at the time of Agis IV's ascension to the Eurypontid seat, was a small state in Laconia without much beyond its own hinterland, an aging and rapidly declining population, not much wealth to speak of, and no relevance in Greek affairs. The city's dominant position in the Peloponnese had been ceded first to the Thebans, then the Macedonians, and by the 240s the Achaean League, which would, together with the Macedonian king Antigonus, definitively defeat the Spartans in their final attempt at regaining Peloponnesian relevance under Cleomenes in the 220s. When Agis IV became the Eurypontid king the Spartiate population, which had never been large to begin with, had declined significantly. Plutarch at Agis 5.5 claims that there were only 700 full Spartiates, only one-seventh of whom actually had their land plots. Plutarch's figure for the landed Spartiates seems too small, but the Spartiates had declined significantly, and wealth was clearly extremely uneven among them. An ephor of 243/2, Lysander, with Agis' support proposed a law that would provide for general debt forgiveness for Spartiates and provide large land grants for Spartiates and perioeci. The law was narrowly defeated, at which point Lysander indicted the Agiad king Leonidas II, according to Plutarch (Agis 11) for having children with a woman from Asia Minor, reviving an old custom that stated that none of the Spartan kings were to have a child by a foreign woman. Leonidas II fled into exile, and Lysander installed Cleombrotus II as king. Plutarch says that the Spartans couldn't manage to get the land distribution and debt relief organized smoothly, and worse yet during the process Leonidas returned and, reinstating himself on the Agiad throne, put Agis to death. Only a decade later Leonidas' son Cleomenes III similarly effected a coup in 227, eliminating the ephorate and the Eurypontid kingship, and attempted to reestablish Spartan hegemony, bolstering Spartan manpower by greatly expanding the citizenship and mobilizing the remaining helots. Cleomenes, as autocrat, was decisively defeated in 223 by Antigonus, failed to get support from the Ptolemies, and committed suicide.