Hugh O'Reilly, (born c.1581 County Cavan

County Cavan

County Cavan is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Cavan. Cavan County Council is the local authority for the county...

, Ireland

Ireland

Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

; died February 1653 Trinity Island, Cavan), was an Irish leader. He was consecrated as Bishop of Kilmore

Bishop of Kilmore

The Bishop of Kilmore is an episcopal title which takes its name after the parish of Kilmore in County Cavan, Ireland. In the Roman Catholic Church it remains a separate title, but in the Church of Ireland it has been united with other bishoprics.-History:...

 in July 1625 and translated to Armagh on 5 May 1628.

He was the son of Maolmórdha Mac Aodh Ó Raghallaigh of the principal family of the petty kingdom of East Breifne

East Breifne

East Breifne was an historic kingdom of Ireland roughly corresponding to County Cavan....

 - the O'Reillys. He was eligible for election to the chieftainship under the system of deirbhfhine.