ANTIGONEA, or ANTIGONIA, in Ancient Geography, a town of Bithynia, so called from Antigonus, the son of Philip, and afterwards called Nicæa (Strabo, Stephanus). Another of Epirus, to the north of the Montes Ceraunii, opposite to the city of Oricum (Polybius, Ptolemy). A third of Arcadia, namely Manitica, so called in honour of King Antigonus, (Plutarch, Pausanias). A fourth in Macedonia, in the territory of Mygdonia (Pliny, Ptolemy). A fifth in the territory of Chalcidice, in Macedonia, on the east
side of the Sinus Thermaicus (Livy). A sixth of Syria, built by Antigonus, not far from Antioch, on the Orontes (Stephanus); but soon after destroyed by Seleucus, who removed the inhabitants to Seleucia, a town built by him (Diodorus Siculus). A seventh of Troas, called Alexandria in Pliny's time.