To learn why Oliver deserved the title of saint, please read his biography which I have linked here.
Saint Oliver Plunket was canonized by the Catholic Church in 1975 because of his steadfast faith, courage, and martyrdom. He was the Archbishop of Armagh in Ireland during a time of religious persecution, and he refused to betray his faith despite facing unjust accusations and trials. His dedication to his beliefs and his willingness to sacrifice his life for them made him a symbol of strength and faith for many.
Oliver Plunket is the patron saint of the archdiocese of Armagh, Ireland. He has no othe patronages at this time.
Roman Catholic AnswerThe patron saints of Ireland, in order, are: St. PatrickSt. BrigidSt. ColumbaSt. KevinThe first Irish saint to be canonized by a pope was:St. MalachyOther important saints of Ireland are:St. AidanSt. BrendanSt. ColumbanSt. ItaSt. KieranSt. Oliver Plunket was the last Catholic Martyr canonized.
Oliver Plunkett was canonized on October 12, 1975, by Pope Paul VI at Rome, Italy.
There is no such canonized saint.
No, he is not a canonized saint.
There is no such canonized saint.
There is no such canonized saint.
Saint Cecilia was canonized by the Catholic Church in the 4th century.
Mary MacKillop who was recently canonized is Australia's first canonized saint.
There is no canonized saint by that name.
No, he is not a canonized saint.
Saint Rose of Lima was the first saint from the Americas to be canonized,The first person born in the Americas to be canonized as a saint was St. Rose of Lima. The first person born in the United States to be canonized as a saint was St. Elizabeth Ann Seton.