Cleonymus, a Spartan, son of Sphodrias, was much beloved by Archidamus, the son of Agesilaus. When Sphodrias was brought to trial for his incursion into Attica in 378 BC, the tears of Cleonymus prevailed on the prince to intercede with Agesilaus on his behalf. The king, to gratify his son, used all his influence to save the accused, who was accordingly acquitted. Cleonymus was extremely grateful, and assured Archidamus that he would do his best to give him no cause to be ashamed of their friendship. He kept his promise well, acting ever up to the Spartan standard of virtue, and fell at Leuctra, 371 BC, bravely fighting in the foremost ranks. (Xenophon Hell. v. 4. §§ 25-33; Plut. Ages. 25, 28.)