Oxyathres of Heraclea

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Oxyathres (died 284 BC) was a ruler of Heraclea. He was the son of Dionysius, the city's tyrant, and Amastris, who was the daughter of Oxyathres, the brother of Darius III. After Dionysius died in 306 BC, Oxyathres and his brother Clearchus shared the throne. Their mother Amastris ruled while they were still youths. When they came of age, they had their mother killed in 284 BC. Lysimachus then seized Heraclea and killed both brothers. Diodorus says they reigned for seventeen years, and their deaths occurred in 284 BC.