Overlooking Inch Island from the "Grainan of Aileach" ancient stone ring fort, Donegal, Ireland The fort was first constructed around 1700 BC (probably with earthen walls), by the Tuatha de Danann. It has been ascertained that it was the Palace of the Northern Princes, from a period long before Christianity (AD 400) up until the 14th century. Legend states that the giants of Inishowen (Princes of Aileach) are lying sleeping but when the sacred sword is removed they will spring to life reclaiming their ancient lands. A wonderful place to visit with some of the most amazing views seen throughout Donegal all next to an ancient stone fort were once Kings & Queens of Ireland reigned from, So much history and beauty in this area