An army was led by Cineal Eoghain to Maigh Cobha. The Ulidians entered their unguarded camp by night and killed a number, among whom was the king of Carraig Bhrachai, Sitric O Maolfabhail. In 1166 Aodh O Maolfabhail, king of Carraig Bhrachai, was treacherously killed by Muireartach, son of Niall Mac Lochlainn. In 1199 Cathalan O Maolfabhail, king of Carraig Bhrachai, was killed by O Dearain [no particulars], who was slain in revenge immediately afterwards by adherents of Cathalan. In 1215 Trad O Maolfabhail, chief of Cineal Fhearghasa, his brothers and a great number of people were slain in Dumbartonshire in Scotland by Muireadach, the chief steward of Lennox. The particulars of the conflict are not given. At this point all reference to the Lords of Carriag Brachai ceases. It is striking to see that the Lords of Carrickabraghy were important enough to be included in this book of Irish History over such a long period of time. They were heavily involved in medieval conflicts and were considered important military officers in these battles, fighting alongside kings, and taking to battle across the seas. Seán Beattie, in his book Ancient Monuments of Inishowen, recounts a tale regarding a Viking raid on Donegal in the tenth century. Three princesses were taken as hostages during the raid. One of the princesses escaped and took plundered treasure with her. She came ashore at Carrickabraghy and married a local chief. Throughout the period of Viking invasion in Inishowen the McFaul sept maintained their control over Carrickabraghy. Carraig Bhrachai is not mentioned again in the history books until 1600. The present remains of The Castle are thought to have been built around this time. The O Dochartaigh Clan had risen into power in Inishowen and the Chief of the clan and Lord of Inishowen was Sean Og O Dochartaigh. The English invasion of Ireland was well underway, and to protect his livestock and supplies from English raids, Sean Og decided the best place to store them was on The Isle of Doagh with his kinsman, The Lord of Carraig Bhrachai, Feilimi Brasleach O Dochartaigh. There was good reason for this as The Isle of Doagh was unfamiliar territory to the English and was easily defended as it was only accessible at low tide. Sean Og O Dochartaigh died suddenly in 1601 and his successor as Lord of Inishowen had not yet been decided. The natural