It assumed possession of most Church property (and so retained a great repository of religious architecture and other items, though some were later destroyed).
The substantial majority of the population remained faithful to Roman Catholicism, despite the political and economic advantages of membership in the state church.
In 2019, the Church of Ireland General Synod agreed to amalgamate the two dioceses upon the retirement of their incumbent bishops.
[5] The present united diocese dates from 2022, the result of a number of mergers of sees beginning in the seventeenth century:[6] Five others are in ruins or no longer exist: St. Crumnathy's Cathedral, Achonry was deconsecrated in 1998 and is now used for ecumenical events.
[11] As of 2022, the united diocese is divided into a number of parishes, each led by a priest serving multiple churches.