First constructed around 1700 BC (probably with earthen walls) by the Tuatha de Danann. An Grianan Ring Fort was once a seat of power were the ‘O’Neill Kings’ reigned from for over 700 years. An Grianan Of Aileach is a famous monument in Inishowen & easily one of the greatest in all Ireland
Strategically built along Donegal’s coast on a hilltop 800 feet above sea level the view from Grianan Fort overlooks it’s 3 neighbouring counties. Legend states that the giants of Inishowen (Princes of Aileach) are lying sleeping under this hill but when a hidden sacred sword is removed from this ring fort, they will return to life reclaiming their ancient lands.