O'Doherty's Castle (Burt Castle)

Burt Castle was constructed around 1560 by the O'Doherty clan, the lords of Inishowen, on a small island surrounded by marshland in eastern County Donegal. The castle exemplified contemporary defensive architecture, influenced by Scottish Z-Plan fortifications with three stories, two circular watchtowers, and a vaulted chamber. As a strategic stronghold protecting the southern edge of the O'Doh...