Heracleium or Herakleion (Ancient Greek: Ἡράκλειον) was a city on the south coast of ancient Pieria, Macedon, between Phila and Leibethra. During Peloponnesian war it passed into Athenian control in the years 430/29, 425/4 and 421 BCE. After Athenian alliance with Perdiccas II in 413 BCE it became again a city of Macedon.
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