[2] It also borders two baronies in the Republic of Ireland: Trough and Monaghan both to the south-east.

[5][6] The Mac Cathmhaoil (English: McCaul, Campbell, MacCawell, MacCall) were the leading sept of the Cenél Fearadhaigh, and one of the seven powerful septs supporting O'Neill.

The Maolgeimridh (English: Mulgomery, Montgomery) and Maolpadraig (English: Mulpatrick, Kilpatrick) septs are recorded as being in possession of the two districts of the Cenél Fearadhaigh at one stage.

By the mid-14th century however, the Maguires would break the power of the Cenél Fearadhaigh in Fermanagh.

[7] When the baronies of Ulster were being created by the English around 1585, the general manner was to name it after the principal town or castle lying within the area, in which they held their court, baron, and gaol.