A notable holder of this office left his wife Gorgo behind and was betrayed by Ephialtes in 480 B.C.E.
One holder of this office was targeted in a coup plot that included bribing the Delphic Oracle. The last occupant of this position was overthrown by an Aetolian army during a wider invasion by Titus Quinctius Flamininus. Holders of this office included Demaratus, Nabis, and the reformer Cleomenes III, all of whom sat on the gerousia. One Agiad and one Eurypontid family member (*) concurrently held this office, which enforced the Code of Lycurgus. Abolished amid concerns that its last occupant would free the helots, its holders were generally subordinate to the corrupt rule of the ephors. A notable holder of this office left his wife Gorgo behind and was betrayed by Ephialtes in 480 B.C.E. For 10 points, identify this position, whose most famous holder took three hundred soldiers to fight at Thermopylae..
One holder of this office was targeted in a coup plot that included bribing the Delphic Oracle.
{king} of {Sparta} [prompt on partial answer; accept {logical} equivalents; do not accept “ephors”]