An Grianán

History of An Grianán

Coming Soon

Click the thumbnails below to open the photos in a larger viewer!

Equinox solar alignment at An Grianán by Adam Rory Porter, 2014.

Footage by Peter Homer, 2015.

Other Resources to Check out

Monument Information

An Grianán, traditionally called "Grianán of Aileach" is National Monument No. 140 under ownership of Ireland's  National Monument Service. The archaeological complex at this site includes an ancient cashel restored during the 1870s (RMP# DG047-012001-) enclosed within three earthen walls (RMP# DG047-012005-), also, a burial mound (RMP# DG047-012002-), an ancient road (RMP# DG047-012004-), and a holy well (RMP# DG047-012003-). View more information at Historic Environment Viewer and National Monument Service).

Visit The Grianán!



The O'Doherty Heritage website is designed to be your place for all things Ó Dochartaigh. Whether your name or ancestry is from a Doherty, Dougherty, Daugherty, Docherty, Dogherty, if your family used another spelling of our name, or if you're from one of our related Donegal families, such as the McDevitt/McDaid, McBride, McConlogue, or others–we welcome you to the O'Doherty Heritage website!

The vision of the O'Doherty Heritage is "Telling our story, uniting us together." This was the same vision of our ancestors, the Ó Dochartaigh patriarchs, when they established our Clan motto, Ár nDúthchas–which means 'Our Heritage'. Below are the goals of O'Doherty Heritage:


  • Share our heritage with our entire Clan

  • Research, document, & bring our history to life

  • Curate a digital Clan genealogy research library


  • Encourage quality genealogical research

  • Promote clan identity and pride in our heritage

  • Facilitate communication amongst our clanfolk


This site is curated by Will Dougherty III under the direction of the Association of Ó Dochartaighs. ©2020 O'Doherty Heritage. Site Policies. I'd love to hear your thoughts on the site, answer your questions, or see you get involved! Email