sentences:  The parish is based on the civil parish of Coolock.During penal times, it was one of the few functioning Catholic parishes in Dublin.The Celtic Church did not utilise parochial structures, being primarily based around monastic settlements, but following restructuring under figures such as St. Malachy, Archbishop of Armagh, and the papal legate Cardinal Paparo in 1152, the Christian Church in Ireland was divided in the 12th century into thirty-eight dioceses, each comprising a number of parishes.