The kingdom devolved upon Archidamus his son, and remained in his family down to Agis, who was slain by Leonidas 1 for attempting to restore the ancient constitution, being the fifth in descent from Agesilaüs.
Edition :
Plutarch Lives V: Agesilaus and Pompey, Pelopidas and Marcellus, Ed. Jeffrey Henderson, trans. Bernadotte Perrin (The Loeb Classical Library 87), Harvard University Press: Cambridge/MA - London 1961 (first ed. 1917).