O’Reilly was born in Corgreagh, Kill, Cootehill, County Cavan on 10 April 1944, the son of Terence and Maureen O'Reilly.[1] He later moved with his family to Kilconny, Belturbet, attending primary school at Drumnatrade and Tullyvin National Schools and secondary school at St Patrick's College, Cavan.[2]
Following the retirement of McKiernan as Bishop of Kilmore on 16 October 1998, O'Reilly succeeded to the see with immediate effect. He was subsequently installed on 15 November in the Cathedral of Saint Patrick and Saint Felim, Cavan.[1]
The report stated that allegations had been identified against seven priests in the diocese, all of which had been received since 1975, and that all allegations were addressed and reported to the Garda Síochána and the Health Service Executive or preceding health boards. It was also reported that no examples of "poor practice" were found following O'Reilly's elevation to the episcopate in 1998, and his approach to child protection was praised as an "excellent example" for others to follow.[4]
However, it was reported on 18 December that a priest at the centre of abuse allegations and complaints continued to live in a parochial house in the diocese, despite repeated requests from O'Reilly that he move to alternative accommodation.[5]
Same-sex marriage
Ahead of a Constitutional Convention established by the Government of Ireland in 2013 to consider permitting same-sex marriage, O'Reilly questioned the length of time available to discuss the issue, adding that permitting same-sex marriage would see that the "roles of mother and father are to be consigned to history".[6][7]
Following the passing of a referendum on liberalising abortion laws on 25 May 2018, O'Reilly admitted that the Catholic Church in Ireland is in a "new reality" where it is no longer the dominant voice in society, adding that many people in Ireland were Catholic "by culture rather than convention".[12]
It was announced on 31 December 2018 that O'Reilly had tendered his resignation to Pope Francis on health grounds and in advance of his 75th birthday in accordance with canon law, and that it had been accepted with immediate effect.[14][15][16]