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.
St Patrick's Cathedral, Armagh (Church of Ireland)
The origins of the cathedral are related to the construction in 445 of a stone church on the Druim Saileach (Willow Ridge) hill by St. Patrick, around which a monastic community developed. The church was historically the centre of the Roman Catholic Church in Ireland, having been transferred to the Protestant Church of Ireland by the British government during the Irish Reformation. Following the Henrician Reformation in Ireland the cathedral became increasingly associated with the then Established Church and has been definitively in Anglican hands since the reign of Elizabeth I. A Roman Catholic cathedral was built on a neighbouring hill in the nineteenth century. Cordial relations exist between both cathedrals.