Phthia married Demetrios II Aetolikos, King of Macedonia (239-229BC), son of Antigonos II Gonatas, King of Macedonia (276-239BC) and Phila II SELEUCID Princess of Syria. (Demetrios II Aetolikos, King of Macedonia (239-229BC) was born in 275 B.C. and died in 229 B.C..)