Carrickabraghy Castle is located in one of the wildest and most northerly locations in Ireland. This was just one in a network of castles built to defend and protect the lands belonging to the O’Doherty clan in the mid to late 1500’s. This location was a perfect hideaway as Doagh Island is an island off the Inishowen peninsula which was also an island before the 17th century. It was occupied by Phelemy Brasleigh O’Doherty and was later chosen by Cahir O’Doherty to plan his famous revolt that led to the Flight of the Earls in 1607. Further back in time, between 834 and 1200, this location according to the Annals of the Four Masters, was the site where the McFaul Clan resided. The McFauls were a powerful sept of the ruling O’Neill Chieftains of Ulster. Recently, ancient rock art dating back to the Bronze Age was found near this ancient location.