sentences:  Clontarf parish (Roman Catholic)
  
  Founded in the early days of Irish Christian parish structures, the Parish of Clontarf assumed in 1829 the mantle of Union Parish for a large area of north Dublin, Ireland, a role previously filled by the Parish of Coolock, into which Clontarf had been subsumed in 1614 - refer to that article for history from 1618 to 1879.Clontarf itself is a large northside suburb of Dublin, and the parish was in the 20th century divided into the modern parishes which now serve that area.