Cleomenes III
The "Leukaspides" were notably used by Antigonus Doson in his campaign against Cleomenes III of Sparta in the 220's BC (Plutarch, Cleom. 23.11), and the shields of the Leukaspides are mentioned as spoils of war after the Battle of Pydna in 168 BC (Diodorus Siculus, 31.10).