Dunseverick Castle is located at Dunseverick in co.Antrim. This location was regarded as a ‘key’ site in ancient Ireland as this was the point where one of the royal roads from Tara ended. It has a important holy well nearby which was reputedly used by St.Patrick when he visited Dunseverick in the 5th century. He baptized Olcán here, who was a local man that later became the Bishop of Ireland. In the 6th century, this became the seat of ‘Fergus the Great’ who was the King of Dalriada, a kingdom that stretched from Northern Ireland to the west of Scotland. This was also the departure point of the ‘Lia Fail’ – Ireland’s most important coronation stone which was taken to Scotland for Fergus’s coronation. It was raided by Vikings in 870 ad and again by Queen Maeve of Connaught who started a long and bloody war between Ulster and Connaught. In 1000 the O’Cahan family captured it and held it for over 300 years. It was destroyed by General Robert Munro in 1642 and later by his Cromwellian troops in the 1650s. A small residential tower survived until 1978 when it eventually fell into the sea below. Today only the ruins of the gate lodge remain.