CARRICKFERGUS
CARRICKFERGUS, a sea-port, borough, market-and post-town, and parish, and a county of itself, locally in the county of ANTRIM, of which it was the ancient capital and is still the county town, 88 miles (N.) from Dublin; containing 8706 inhabitants. This place, which is of great antiquity, is by some writers identified with the ancient Dun-Sobarky or Dun-Sobairchia, according to Dr. Charles O'Conor from a prince named Sobairchius, who made it his residence; but the correctness of this supposition is doubted by others. It is thought to have derived its present name, signifying. "The Rock of Fergus," early in the 4th century, from Fergus Mac Erch, a chieftain of Dalaradia, who established the first Irish settlement on the opposite coast of Caledonia. An ancient triad quoted by Dr. O'Conor records that St. Patrick blessed a tower or strong hold of the Dalaradians, in which was a well of miraculous efficacy, called Tipra Phadruic, "The well of St. Patrick." It is uncertain at what period the castle was originally erected; the present structure, from the style of its architecture, was evidently built soon after the arrival of the English. John, Earl of Morton and Lord of Ireland, was here in the lifetime of his father, Henry II. (from whom John De Courcy received the grant of all the lands he might conquer in Ulster); and his despatch to the king, dated at Carrickfergus, in which he mentions his having taken the castle, is still extant among the MSS. in the library of Trinity College, Dublin, and is written in Latin.
This castle, with subsequent additions, is still remaining, and is justly considered one of the noblest fortresses of that time now existing in Ireland. De Courcy having fallen into disgrace with the succeeding English monarchs, his castles and possessions in this county fell into the hands of the De Lacy family, who, becoming tyrannical and oppressive, incurred the anger of King John. During the contentions which arose among the English settlers, after they had established themselves in the country, this place suffered so much that Hugh de Lacy the younger, who, on the restoration of his family to the royal favour, repaired the town and strengthened it by the introduction of new settlers, has even been regarded as its founder.