The Mac Geoghegans
Mac Eochagáin - anglicised Mac Geoghegan, then Geoghegan, then about a hundred spelling variants - were Gaelic chiefs of the territory of Cineál Fiachach in south Westmeath and north Offaly. The genealogies trace them to Fiacha, son of Niall of the Nine Hostages, the fifth-century high king who is said to have taken Saint Patrick to Ireland as a slave. Whether or not the tree is literal, the lordship is real: fifteen Mac Geoghegan chiefs are named in the Annals of the Four Masters between 1291 and 1450. The principal castle of the lordship was at this village. By the late sixteenth century the chief had submitted to the English crown under the surrender-and-regrant policy and held his land as a tenant of the queen rather than as a Gaelic lord. The castle is gone; the surname is on every second headstone in the midlands.