Agathoergi

The Agathoergi (Ancient Greek: ἀγαθοεργοί) were a special designation for a group of Spartan knights (ἱππεῖς), who were part of a larger body of 300 knights serving as bodyguards to the kings of Sparta during times of war. Every year, five men from the 300 were selected to serve as Agathoergi for specific diplomatic missions to foreign states. A famous one was Lichas, who according to the legends played a key role in fulfilling an oracle that required the Spartans to obtain the bones of Orestes in order to conquer Tegea.