Grianan of Aileach
Archaeology » Heritage sites» Grianan of Aileach
County Donegal


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.