|Bishop of Cork, Cloyne and Ross|
|Church||Church of Ireland|
|Born||4 August 1798|
|Died||26 May 1878 79)(aged|
|Buried||Mount Jerome cemetery, Dublin|
|Parents||Richard Gregg (father)|
|Children||6 (including Robert Gregg)|
|Education||Trinity College, Dublin|
John Gregg (4 August 1798 – 26 May 1878) was an Anglican bishop. 
He was born in 1798 near Ennis, County Clare, the son of Richard Gregg, a small landowner, and educated at Trinity College, Dublin. He was ordained in 1822, and quickly gained a reputation as an eloquent preacher, and was fluent in the Irish Language. Gregg served as assistant and then as chaplain to the Bethesda Chapel, Dublin, from 1835, until 1839 when he became Rector of the newly established Holy Trinity Church, Gardner Street, Dublin, and then appointed Archdeacon of Kildare in 1857 before his elevation to the episcopate as the Bishop of Cork in 1862.  As bishop he is mainly remembered for overseeing the building of Saint Fin Barre's Cathedral, at a cost of over £100,000. He published "A Missionary Visit to Achill and Erris" (3rd edition) in 1850. 
Gregg died in post on 26 May 1878  He had married Elizabeth Law and had six children. His son Robert Gregg and grandson, John Gregg  were also bishops, and both became Archbishop of Armagh. His daughter, Frances (Fanny) Gregg was the founder of Saint Luke's Home, Cork (then known as "The Home for Protestant Incurables") in 1872.
The Rt Rev Robert Thomas Hearn was the 9th Bishop of Cork, Cloyne and Ross.
Educated at Trinity College, Dublin, he was ordained in 1900. His first post was a curacy at Youghal after which he was Vicar of Shandon where his wife Mary Hearn was a gynaecologist. in 1926 he became Archdeacon of Cork then its Diocesan Bishop. He died in post on 14 July 1952.
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