the Kingdom of Oriel
Counties Monaghan, Armagh, Fermanagh, Louth and Derry,
and Beyond ....
This site is devoted to revealing the history of Clan Mac Mahon of
Oriel, so that all those who are descended from this lineage may know
the true nature of their legacy. This includes the following surnames:
McMahon, Mac Mahon, Mahon, Mathews, McArdle, McPhillips