Plenty of famous names have passed through the corridors of Holy Ghost Fathers schools.
Among them are:
Former Taoiseach Eamon de Valera who attended Blackrock College.
Bob Geldof, organiser of Live Aid and singer, went to Blackrock.
The environmental academic and conservationist, Frank Convery, who went to Blackrock.
David Doyle, the former managing director of the Doyle Hotel group, which recently merged with Jurys Hotel Group, went to Blackrock.
The RTE radio and television presenter, Dave Fanning, went to Blackrock.
Dr Edmund Farrell, the former chief executive of the Irish Permanent, went to Blackrock.
Jim Flavin, managing director of the listed company DCC, went to Blackrock.
Judge Ronan Keane of the Supreme Court went to Blackrock.
Fine Gael senator, lecturer and author Maurice Manning went to Rockwell College in Co Tipperary.
Rory O'Hanlon, the chairman of the Fianna Fail party, went to Blackrock.
The leader of the Labour Party, Ruairi Quinn, went to Blackrock.
Fashion designer Paul Costelloe went to Blackrock.
Judge Michael Moriarty of the High Court and tribunal fame went to Blackrock.
Anthony Cronin, writer and former cultural adviser to the government, went to Blackrock.
Harry Crosbie, owner of the Point Depot, went to Rockwell College.