Gylon
Gylon (Ancient Greek: Γύλων), also known as Gylon of Cerameis, was a Greek military official and the maternal grandfather of Demosthenes. He is known for his role in the capture and ultimately turning over of Nymphaeum to the Bosporans, for which he was punished. Nymphaeum fell under Athenian rule when Gylon captured the city and established a garrison there, along the strategically important grain route. Until that time, the city was influenced by the Scythians. He was said to have lived in Ancient Crimea (Bosporan Kingdom).