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In page Ephesus:

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Thus Ephesus became part of the Seleucid Empire. After the murder of king Antiochus II Theos and his Egyptian wife in 246 BC, pharaoh Ptolemy III invaded the Seleucid Empire and the Egyptian fleet swept the coast of Asia Minor. Ephesus was betrayed by its governor Sophron into the hands of the Ptolemies who ruled the city for half a century until 197 BC.[citation needed]