High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Dion (408 354 BC), tyrant of Syracuse in Sicily, was the son of Hipparinus, and brother-in-law of Dionysius I of Syracuse. Dion was the son of the Syracusan statesman Hipparinus, who had assisted the despot Dionysius I, in the Syracusan army. Hipparinus' other children were Megacles and Aristomache. Aristomache married the despot Dionysius I, who married the Locrian Doris simultaneously. Although Dion's sister was beloved by her fellow Syracusans, it was Doris who gave birth to the heir (Dionysius II). Aristomache had four children. Among them, Sophrosyne married the younger Dionysius, and Arete married Dion (whose son was Hipparinus).