The Church of Our Lady of Coros stands on the plateau of Sas Seas, about four kilometers from Ittiri. The building’s construction probably dates between 1250 and 1280, as there appear to be close stylistic similarities in the equipment of the sides to that of the church of Santa Barbara, built in the Sassari countryside in the eighth decade of the 13th century. It is considered one of the last Cistercian buildings in Sardinia in that, in addition to the Romanesque-Cistercian architectural elements, it also has Gothic elements indicated by the pointed arches, one of the first appearances of Gothic in the island. There is only one document that refers to the monastery of Coros: a Cistercian seal found in 1848 in Codrongianos and preserved in the archaeological museum in Cagliari. The construction of the church of Nostra Signora di Coros was assigned to workers linked to the Arab tradition, active in the first half of the 13th century in the northern area of Sardinia, who were required to comply with the forms inherent in religious buildings. The church of Our Lady of Coros depended on the Abbey of Our Lady of Paulis.
