County Fermanagh (Fir Manach or Fear Manach, meaning "men of Manach") is one of four counties of Northern Ireland to have a Catholic majority. It is by far the least populous of the six counties.

The Menapii are the only known Celtic tribe specifically named on Ptolemy’s 150 AD map of Ireland. They later settled around Lough Erne, becoming known as the Fir Manach, and giving their name to Fermanagh 

Fermanagh was a stronghold of the Maguire clan and Donn Carrach Maguire (died 1302) was the first of the chiefs of the Maguire dynasty. However, on the confiscation of lands relating to Hugh Maguire, Fermanagh was divided in a similar manner to the other five escheated counties among Scottish and English undertakers and native Irish. The chief families to benefit under the new settlement were the families of Cole, Blennerhasset, Butler, Hume, and Dunbar.

The Annals of Ulster which cover medieval Ireland between AD 431 to AD 1540 were…