Comprises County Galway, with one parish in County Mayo Suffragan of of the archdiocese of Tuam. Saint Colman founded a monastery at Kilmacduagh (610) and subsequently became bishop there. The diocese was united with that of Kilfenora in County Clare, 1750. In 1484Galway, in the Diocese of Annaghdown, obtained exemption from the jurisdiction of Tuam; during the Reformation its churches were taken by the Protestants. In 1831 disputes over the ecclesiastical administration of Galway led to its erection into an episcopal see. Its bishop was appointed Apostolic Administrator of Kilmacduagh and Kilfenora, 1866, and in 1883 the three dioceses were united. The ancient cathedral of Kilfenora is in ruins. See also