sentences:  Already inhabited area during the Nuragic period, as suggested by the presence in the territory of some Nuraghes, Dualchi belonged to the Judicate of Torress in the Middle Ages and was part of the "curatoria" of Marghine.The village came under the influence of the Arborean Judges, when such curatoria became absorbed into the Arborean curatoria of Parte Barigadu.Upon the fall of the Arborean Judicate (1429), Dualchi became part of the Aragonese marquisate of Oristano.