But the very year after their return a fresh rising was made by the Macedonians, under a pretender who claimed to be the son of Perseus, and by the Peloponnesians, with the Achaians and Spartans at their head, while the Corinthians insulted the Roman ambassadors.  A Roman general named Quintus Metellus was sent to subdue them, and routed the Macedonians at the battle of Scarphæa, but after that another general named Mummius was sent out.  The Achaians had collected all their strength against him, and in the first skirmish gained a little success; and this encouraged them to risk a battle, in which they were so confident of victory that they placed their wives and children on a hill to watch them, and provided waggons to carry away the spoil.  The battle was fought at Leucoptera, near the Isthmus, and all this boasting was soon turned into a miserable defeat.  Diæus, who commanded the Greeks, was put to flight, and riding off to Megalopolis in utter despair, he killed his wife and children, to prevent their falling into the hands of the enemy, and then poisoned himself.