Catholic Church in Ireland
In the 2016 Irish census 78.3% of the population identified as Catholic in Ireland; numbering approximately 3.7 million people. Unlike Catholics in the United States, Ireland has seen a significant decline from the 84.2% who identified as Catholic in the 2011 census.
Primacy of Ireland
Since the 1870s one or other of the Catholic archbishops of Armagh and Dublin has been a member of the College of Cardinals. Due to Ireland's small size, two Irish reigning diocesan cardinals are unlikely to be created. An apparent dominance of Dublin over Armagh was shown in the 1850s when the then Archbishop of Armagh, Paul Cullen was transferred from Armagh to the nominally inferior see of Dublin, where he became the most high-profile Catholic prelate in Ireland. Some years after the First Vatican Council, in which he played a central role in the proclamation of Papal Infallibility, he was made Ireland's first cardinal, ahead of the nominally superior Archbishop of Armagh. Cullen's successor in Dublin, Archbishop Edward MacCabe was also made a cardinal. But after that, the cardinal's red hat went invariably to the Archbishop of Armagh, until Pope John Paul II awarded the red hat not to the low-key pastoral Seán Brady of Armagh, but to the higher-profile, more intellectual, and clearly conservative, Desmond Connell of Dublin. But in 2007 Pope Benedict XVI decided to give the honour again to the See of Patrick, creating Brady a cardinal rather than the reigning Archbishop of Dublin, Diarmuid Martin, previously a high-profile Vatican official.