Fathadh mac Aonghus

Fathadh mac Aonghus (fl. 10th–11th centuries)[1] was an Irish nobleman.

He is the purported ancestor to the Ó Fathaigh/Fahy family of Uí Maine. The first person known bear the surname would appear to be one Cormac mac Maonach (Cormac Ó Fathaigh) who is listed as his great-grandson of the eight generation. However, if it is correct, Fathadh's grandson, Aonghus, or his great-grandson, Flann, would have been its first users. But Fathadh is given as a son of Aonghus mac Lomán, who lived sometime in the sixth, or even fifth, century, hundreds of years before the introduction of surnames in Ireland.

Notable descendants

Tadhg an tSleibhe Ó Fathaigh, Chief of the Name, fl. 1620

Notes

Fathadh's floruit is uncertain. He is not recorded in the annals, and the genealogies simply refer to him by name, his father been given as Aonghus mac Lomán.

References

The Tribes and Customs of Hy-Many, John O'Donovan, 1843
The Parish of Ballinasloe, Fr. Jerome A. Fahey
The Fahys - Clanricarde's Opponents by Jim Fahy, in Clanricarde Country, Woodford Heritage Group, 1987

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[1] Fathadh's floruit is uncertain. He is not recorded in the annals, and the genealogies simply refer to him by name, his father been given as Aonghus mac Lomán.