Amastris (in Greek Aμαστρις; 306 - killed 284 BC), also called Amastrine, was the daughter of Oxyathres, the brother of the Persian king Darius III, was given by Alexander the Great in marriage to Craterus. But Craterus decided to marry Phila, the daughter of Antipater. Later Amastris married Dionysius, tyrant of Heraclea Pontica, in Bithynia, 322 BC. After the death of Dionysius, in 306 BC, who left her guardian of their children, Clearchus, Oxyathres, and A… (More on Amastris)