 In 303 BC Sicyon was conquered by Demetrius Poliorcetes who razed the ancient city in the plain and built a new wall on the ruins of the old Acropolis on the high triangular plateau which resulted sufficient for the reduced populace.The new agora was adorned by a "Painted Stoa" attributed to the king's mistress Lamia, a flute player.For a short time the town was now called "Demetrias", but eventually the old name prevailed.