St Patrick's Cathedral, Dublin
Saint Patrick's Cathedral () in Dublin, Ireland, founded in 1191, is the National Cathedral of the Church of Ireland. With its spire, St. Patrick's is the tallest church (not Cathedral) in Ireland and the largest. Christ Church Cathedral, also a Church of Ireland cathedral in Dublin, is designated as the local Cathedral of the diocese of Dublin and Glendalough.
Máel Patraic Ua Scannail
In 1268 he laid out designs for the expansion of St. Patrick's Cathedral, Armagh (the structure now used by the Anglican Church of Ireland). The cathedral survives substantially to his plan.
A magnificent Gothic Revival Cathedral, to designs by Duff revised by McCarthy, St. Patrick's Cathedral, Armagh (Roman Catholic)) was erected on a neighbouring hill to serve the Roman Catholic community the mediaeval cathedral having conformed to the Anglican Rite as a result of the Elizabethan Reformation.