Who dated Polycratia of Argos?

Polycratia (Greek: Πολυκρατία; fl. 213 BC) was an Argive woman, mother of Perseus of Macedon.

She was married to Aratus the Younger, the son of the great Achaean statesman Aratus of Sicyon. She probably gave him a son, also named Aratus, who later became an ambassador of the Achaean League. When Aratus and his son came to the court of Macedon, Polycratia was seduced by the young king Philip V who later resolved to have her father-in-law and her husband poisoned. Some sources state that she actually married Philip and became the mother of his son Perseus, who succeeded his father in 179 BC.

Philip V (Greek: Φίλιππος, romanized: Philippos; 238 BC – 179 BC) was king of the ancient Greek kingdom of Macedon from 221 to 179 BC. Philip's reign was principally marked by the Social War in Greece (220-217 BC) and a struggle with the emerging power of the Roman Republic. He would lead Macedon against Rome in the First (212-205 BC) and Second (200-196 BC) Macedonian Wars. While he lost the latter, Philip later allied with Rome against Antiochus III in the Roman-Seleucid War. He died in 179 BC from illness after efforts to recover the military and economic condition of Macedonia and passed the throne onto his elder son, Perseus of Macedon.