Later, in 185 BC, Caecilius Metellus was sent as an ambassador alongside Marcus Baebius Tamphilus and a Tiberius Sempronius Gracchus to the Court of Philip V of Macedon, to investigate various charges brought against the Macedonian king by some Thessalians and Epirotes, as well as Eumenes II of Pergamum, in the wake of the Roman victory in the Seleucid War. There, Caecilius Metellus demanded that Philip evacuate the cities under his control in Thessaly and Perrhaebia. On his way back from Macedonia, Caecilius Metellus and the other ambassadors were passing through the city of Argos, at the time controlled by the Achaean League, where they met the magistrates of said league. Caecilius Metellus dIsparaged them for their harsh treatment of the Spartans, referring to poor management of that city-state after its defeat at the hands of the league during the Laconian War of 195 BC, which included "the razing of their walls, the removal of the population as slaves into Achaia, and the abolition of the laws of Lycurgus, on which up to that day the stability of their State had rested". The ambassadors demanded that the Achaean popular assembly be summoned to speak with them to discuss these grievances, but were ignored.