According to legend, this relates to the eleventh descendant of Colla da Chrich,[2] great-grandson of Cormac mac Airt, who was monarch of Ireland about the middle of the third century.

The surname has been anglicized variously as McGuire, McGwire, McGwyre and most commonly, Maguire (from variant form Mag Uidhir).

and maintained their independence as Lords of Fermanagh down to the reign of King James VI & I, when their country was confiscated like other parts of Ulster.

"[7] Enniskillen Castle was the medieval seat of the Maguire (Mag Uidhir), chieftains of Fermanagh, who policed the lough with a private navy of 1,500 boats.

[8] The Maguire clan motto is Justitia et fortitudo invincibilia sunt, which is Latin for "Justice and fortitude are invincible".