Thomas Costello (1744 – 1831) was an Irish prelate who served as

Bishop of Clonfert The Bishop of Clonfert () is an episcopal title which takes its name after the village of Clonfert in County Galway, Ireland. In the Roman Catholic Church it remains as a separate title; but in the Church of Ireland it has been united with oth ...

. He was born in

Ballaghaderreen Ballaghaderreen () is a town in County Roscommon, Ireland. It was part of County Mayo prior to 1898. It is in the north-west of the county, near the borders with counties Mayo and Sligo, just off the N5 road. The population was 2,387 in the 2 ...

. Coen went to the Irish College in Rome to study for the priesthood and was ordained priest in December 1767. Coen was appointed titular bishop of Milevum on 26 January 1816; and Diocesan Bishop of Clonfert on 6 July 1786. He died in post on 8 October 1831.

References

Roman Catholic bishops of Clonfert 19th-century Roman Catholic bishops in Ireland 1744 births 1831 deaths People from Ballaghaderreen Pontifical Irish College alumni Christian clergy from County Roscommon {{Ireland-RC-bishop-stub