Grianan of Aileach
Year of Research
800 B.C.E.-1200 C.E
- The Grianan of Aileach is a group of historic monuments in County Donegal, Ireland built on the hill of Grianán which is 244 metres high.
- Most writers have identified the site as being the great of Aileach.It is formally accepted to be the seat of the Kingdom of Aileach.
- The kingdoms of Ulaidh and Kingdom of Oirialla were two subject kingdoms in the North under the general rule of Aileach.