Going insane, according to Herodotus, he returned to Sparta and was arrested by his half-brothers, Cleombrotus and Leonidas.
This man after having the son of Ariston, his co-regent Damartus, overthrown because he had initially frustrated this man's plans to depose the Aeginetans who had submitted to Persia. This man overthrew Damartus by urging Leotychides to invalidate Damartus' claim to the throne via claims of false lineage. After bribing the Delphic Oracle to favor with Leotychides, who became king himself in 491 BCE, this man the son of Anaxandrides II, along with his new co-regent successfully arrested and deposed the Aeginetan collaborators. Going insane, according to Herodotus, he returned to Sparta and was arrested by his half-brothers, Cleombrotus and Leonidas. For 10 points, name this eventually murdered Agiad king of Sparta, the father of Leonidas' wife Gorgo.
This man after having the son of Ariston, his co-regent Damartus, overthrown because he had initially frustrated this man's plans to depose the Aeginetans who had submitted to Persia.
{Cleomenes} I