About Michael O'Reilly
Michael O'Reilly was a catholic priest.
Michael O'Reilly (born circa 1690, died 1758) was an Irish prelate of the Roman Catholic Church. He served as Bishop of Derry from 1739 to 1749 and Archbishop of Armagh from 1749 to 1758.
Born in County Cavan, he studied theology in Paris and was ordained in 1710. He served as parish priest in Cavan.
He was Rector of Drogheda, and was recommended as the Bishop of Derry by James Francis Edward Stuart on 10 April 1739. His papal brief was dated 24 April 1739 and his episcopal ordination took place on 23 September 1739.
He died in office in 1758, and was buried near Drogheda.
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Important facts
Frequently asked questions
Who was Michael O'Reilly?
Archbishop of Armagh; Bishop of Derry
When did Michael O'Reilly die?
Michael O'Reilly died in 1758.
What was Michael O'Reilly's occupation?
Michael O'Reilly was a catholic priest.
Sources & further reading
· DBpedia: Michael O'Reilly (prelate)
Cite this page
APA: Biography.guide. (2026). Michael O'Reilly. https://biography.guide/michael-o-reilly/
MLA: "Michael O'Reilly." Biography.guide, https://biography.guide/michael-o-reilly/.
Chicago: "Michael O'Reilly." Biography.guide. https://biography.guide/michael-o-reilly/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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