Dunseverick Castle is located on the peninsula near the small village of Dunseverick and the Giant's Causeway.
Saint Patrick is recorded as having visited Dunseverick castle in the 5th century AD, where he baptized Olcán, a local man who later became a Bishop of Ireland. The original stone fort that occupied the position was attacked by Viking raiders in 870 AD.
In the later part of the 6th century AD, this was the seat of Fergus Mor MacEirc (Fergus the Great). Fergus was King of Dalriada and great-uncle of the High King of Ireland, Muirceartaigh (Murtagh) MacEirc. It is the 500 AD departure point from Ireland of the Lia Fail or coronation stone. Murtagh loaned it to Fergus for the latter's coronation in western Scotland part of which Fergus had settled as his sea-kingdom expanded.
The O'Cahan family held it from circa 1000 AD to circa 1320 AD, then regained it in the mid-16th century. Last one to have the castle was Giolla Dubh Ó Catháin, who left it in 1657 to settle in the Craig/Lisbellanagroagh area. Post 1660 they use the anglicised name McCain/O'Kane.
The castle was captured and destroyed by General Robert Munro in 1642 and his Cromwellian troops in the 1650s, and today only the ruins of the gatelodge remain. A small residential tower survived until 1978 when it eventually surrendered to the sea below.
References:The Beckov castle stands on a steep 50 m tall rock in the village Beckov. The dominance of the rock and impression of invincibility it gaves, challenged our ancestors to make use of these assets. The result is a remarkable harmony between the natural setting and architecture.
The castle first mentioned in 1200 was originally owned by the King and later, at the end of the 13th century it fell in hands of Matúš Èák. Its owners alternated - at the end of the 14th century the family of Stibor of Stiborice bought it.
The next owners, the Bánffys who adapted the Gothic castle to the Renaissance residence, improved its fortifications preventing the Turks from conquering it at the end of the 16th century. When Bánffys died out, the castle was owned by several noble families. It fell in decay after fire in 1729.
The history of the castle is the subject of different legends.